| Mark | Name | Inspected | When |
|---|---|---|---|
| A | O.W. Aimsworth | Colt M1873 S.A. .45 Revolvers | 1873-1874 |
| A | Unknown | Early flintlock rifle of crude workmanship | |
| A.A. | Unknown | Kentucky rifle | circa 1760 |
| AAH | Andrew A. Harwood | 1818-1846 | |
| AB | A. Buckminister | Carbines | |
| ABB | A.B. Blackington | Starr & Colt M1860 Revolvers | 1860-1862 |
| ABF | Arctiibald B. Fairfax | 1823-1843 | |
| ACD | A.C. Dieffenbach | Remington-Lee M1884 Rifles | 1893-1894 |
| ACM | Alfred C. Manning | 1863 | |
| ADK | A.D. King | Colt 3Rd Model Dragoon Colt M1851 Colt M1861 Starr Revolvers Ames M1840 Heavy Dragoon Saber |
1850-1865 |
| A.E. | Adam Evick | Flintlock and percussion lock rifles | 1800s-1855 |
| AF | Abonijad Fogt | 1818-1822 | |
| AF | Unknown | Over-under percussion rifle and on a heavy barrel, Kentucky type flintlock match rifle. | |
| AFC | A.F. Cameron | Smith & Wesson New Model No.3 Turkish .44 Revolver 1875 | |
| AGB | A.G. Bennett | Remington Navy Revolvers Ward Burton Rifles |
1868-1879 |
| AGP | Anson G. Perkins | 1859-1863 | |
| A.H. | Unknown | Barrel marking of a fill curly maple stock, percussion Kentucky rifle with British lock. | |
| AH | Asabel Hubbard | Barrels and Stocks Whitney and Starr Muskets Johnson Pistols Waters .69 Flintlock Muskets |
1813-1847 |
| AHC | Archibald H. Ceiley | 1862-1863 | |
| AHC | A.H. Clark | Springfield M1868 Rifles | 1859-1879 |
| AHK | Albert H. Kirkham | 1862-1863 | |
| AHN | A.H. North | 1862 | |
| AHT | Albert H. Thompson | 1862 | |
| A.I.S. | Unknown | Two, four and six barrel pistols of Darling design are met with bearing the initials A. I. S. | |
| AJ maybe AS | Unknown | Curly maple, half stocked plains rifle with engraved brass hardware and Jas. Golcher lock. | |
| AJB | A.J. Bristol | Remington Navy Revolvers Shanps Trial Carbines |
1870-1879 |
| AJM | Albert J. Meyers | USA Navy Signal Pistol M1861 | 1862 |
| A.L. | Unknown | Early Pennsylvania rifle. | |
| AL | A. Lavidine | 1894-1909 | |
| ALB,J. | Pennsylvania, about 1800, possibly an abbreviation for Albright. Fine craftsman. | 1800 | |
| ALB,L. | Unknown | Marking on superposed, percussion Kentucky type rifle. | |
| ALK | Albert L. Koones | 1862-1865 | |
| AMB | Linder .58 Carbine | 1862 | |
| AN,Jos. | Marking "JOS*AN" on barrel of Kentucky rifle. Probably abbreviation for one of the Pennsylvania Angstadt family. | ||
| ANG,Jos. | On barrel of very early flintlock Kentucky rifle with incised Roman nose stock. Probably abbreviation for one of the Pennsylvania Angstadt family. | ||
| APC | A.P. Casey | Army & Navy Percussion Double Action Revolvers Smith & Wesson Schofield .45 Revolvers 1859-1861 Colt Gatling Guns Remington-Lee Rifles |
1861-1886 |
| APC | A.P. Cobb | 1874 | |
| AR | Alexander Reuben | 1862-1868 | |
| AR | Adam Rhulman | Harpers Ferry Muskets and Rifles | 1835-1854 |
| ARW | Abraham R. Wooley | Muskets | 1813 |
| AS or AJ | Unknown | Curly maple half stocked plains rifle with engraved brass hardware and Jas. Golcher lock. | |
| ASG | Albert S. Granger | 1862 | |
| A.S.T. CO. | Unknown | Fond on a "Hero" percussion pocket pistols. | |
| A.ST.B. | Unknown | Marking of a curly maple, half-stock, octagon barrel, double set trigger percussion rifle numbered "No. 199." | |
| A.T.W. | Unknown | Bedford County, Pa., silver inlaid percussion Kentucky rifle. | |
| A.W. | Unknown | Marking inside of lock of Model 1795 flintlock musket. | |
| B.& CO. | Unknown | Brass barrel and frame pistol. | |
| B.B. | Unknown | Marking on a Kentucky type pistol with silver inlays. | |
| BBL | B.B. Lombaru | 1898 | |
| B.F.A. | unknown | Inside marking of a commercial, side action, percussion lock, without tumbler stirrup, ornamented with flying geese and floral stamping. Also lock marking of a percussion rifle by R. Haskell, Painesville, Ohio. | |
| BFQ | B.F. Quimby | 1863 | |
| B.F.S. | Unknown | Flintlock Kentucky rifle. Lock by Wilkes of London, 1810. | |
| BH | Benjamin Hannis | Allen & Wheelock Colt M1860 Remington Elliott Savage Figure 8 Starr Revolvers |
1861 |
| BH | Benjamin Huger | 1854-1858 | |
| B.I. | Unknown | Kentucky rifle. | |
| BL | Benjamin Lamphear | 1798 | |
| BL | B. Lyon | 1875 | |
| BM | Benjamin Moore | North Pistols Waters .69 Flintlock Muskets |
1810-1817 |
| BRW | B.R. Whitcomb | 1899 | |
| BS | B. Syrett | 1898 | |
| B.T. | Unknown | Marking on circa 1830 Kentucky rifle. | 1830s |
| C | A.P. Casey | Colt M1873 S.A. .45 Revolvers | 1875 |
| C | Cloue | 1844-1854 | |
| CAB | Charles A. Brand | Smith & Wesson M1889 .38 Revolvers Lee-Winchester 6mm Rifles |
1899-1900 |
| CB | Cyrus Buckland | 1841 | |
| CB | Charles Boarman | 1847 | |
| C.B. | Unknown | Marking on a light, flintlock Kentucky rifle. | |
| CBC | Calvin B. Cross | 1862-1863 | |
| CCM | Charles C. Morrison | Colt M1873 S.A. .45 Revolvers | 1879-1882 |
| CD | C. Drommer | 1898-1910 | |
| C.D. | Probably Christian Durr | Long flintlock Kentucky rifle. | 1770s |
| CDS | G.D. Shattuck | Colt M1860 .44 Revolvers | |
| CEB | C.E. Buckland | 1859 | |
| CES | Charles E. Sherman | 1842-1847 | |
| CEW | Charles E. Wilson | 1862 | |
| CF | C. Foot | Locks | 1829-1841 |
| CFL | C.F. Lewis | 1863 | |
| C.G. | Unknown | Curly maple full-stock, octagonal barrel, flint lock Kentucky rifle. Double set-triggers; cut out patchbox. | |
| CG | Calven Gay | Evans J.J. Henry and Boulton Pistols |
1818-1831 |
| CGC | C.G. Chandler | Remington Beals .36 and .44 Remington M1861 .44 3rd Model Dragoon |
|
| CGC | Charles G. Curtis | Henry .44 Rifles | 1862-1863 |
| C.H. | Unknown | Flintlock Kentucky rifle. | |
| C.H.D | Probably Christian Durr | Underside of one of Christian Durr's guns is stamped CHD | 1770s |
| CHH | C.H. Hunt | 1864 | |
| CJ | Catesby Jones | Evans M1828 Pistols and Barrels | 1831-1832 |
| C.M.H. | Unknown | Stamped on barrel of heavy halfstock Plains rifle with brass tube for ramrod socket. | |
| C.N. | Unknown | Script initials on barrel of late Kentucky .28 cal. rifle with brass mounted, curly maple full stock and single trigger, back-action lock. | |
| CNG | Charles N. Goudrich | 1862-1863 | |
| CON | Navy M1894 Signal Pistol | ||
| CP | Charles Packard | Springfield Pistols | 1818 |
| CPH | Charles P. Hill | 1874 | |
| CR | Cadwalader Ringold | 1828-1862 | |
| CRB | C.R. Bunker | 1875 | |
| CRS | Curtis R. Stickney | Remington M1871 .50 Pistols Sharps and Springfield Rifles |
1871 |
| CS | Clark Swallow | 1862 | |
| CSC | Charles S. Cotion | 1863-1864 | |
| CSL | C.S. Leonard | 1875 | |
| CSL | Charles S. Lowell | Starr D.A. .44 and M1860 .44 Colt Revolvers |
1858-1861 |
| CTJ | C.T. Judd | 1863 | |
| CV | C. Valentine | 1898-1905 | |
| CW | Charles Williams | Harpers Ferry and North Pistols Starr Swords Waters .69 Flintlock Muskets |
1807-1814 |
| CW | Charles Woodman | Smith & Wesson Model 3 Russian 2nd and 3rd Model.44 Revolver Smith & Wesson 2nd Model Schofield .44 Revolver |
1876-1877 |
| CWB | C.W. Bacon | 1875 | |
| CWH | C.W. Hartwell | 1831-1850 | |
| DAL | D.A. Lyle | Colt M1873 S.A. .45 Smith & Wesson 1St, 2nd New Model Schofield .44 Revolvers |
1876-1880 |
| DAP | Dwight A. Perkins | 1862 | |
| DAT | M1865 Spencer Carbine Stocks | ||
| D.B. | Unknown | Late period flintlock Kentucky rifle with lock by Henry Parker. | &mbsp |
| DC | Daniel Cotton | 1798 | |
| DD | Daniel Dunsmore | Remington Revolvers | 1861-1868 |
| DFC | David F. Clark | Remington-Lee Hotchkiss Rifles Colt Starr Remington Savage Revolvers Colt Gatling Guns |
1861-1886 |
| D.G. | Unknown | Barrel marking of a flintlock Kentucky rifle of about 1800. | 1800 |
| DL | D. Legro | 1826-1831 | |
| D.K. | Unknown | Flintlock Kentucky rifle, stock finely inlaid with ivory, silver, and brass forestock in two sections. | |
| DMK | David M. King | Colt | 1898-1905 |
| DMT | Daniel M. Taylor | Colt .38 Revolvers | 1892 |
| DP | Daniel Pettibone | Evans Henry and Miles Muskets Shuler Pistols Henry Rifles Rose Swords |
1808-1809 |
| DPS | Daniel P. Strong | 1862 | |
| DR | David Rice Stocks | 1835-1863 | |
| DT | Daniel Taylor | Starr Muskets | 1831-1850 |
| DT | Daniel Tyler | Waters .69 Flintlock Muskets | 1831-1834 |
| DW | Decius Wadsworth | 1802-1821 | |
| DWT | D. Waldo Tyler | 1862 | |
| E | Charles Eberle | 1807-1811 | |
| EA | Epaphroditius Allis | Springfield Pistol 1815-1818 | 1818-1841 |
| EAE | E.A. Elliott | 1894-1910 | |
| EAG | E.A. Graves | 1894-1902 | |
| EAH | E.A. Hendrick | 1894 | |
| EAM | E.A. May | 1819-1831 | |
| EAW | E.A. Williams | Spencer Carbines | 1865 |
| EB | Elizur Bates | Waters Model 1836 Pistol | 1841-1846 |
| EB | Edward Barrett | Remington Rolling Block M1866 Pistols | |
| EB | Edmund Byrne | 1814-1850 | |
| EBB | Edgar B. Boyd | 1862 | |
| EC | E.R. Cuoley | M1807 Springfield Musket | |
| ECB | Edmund C. Bailey | 1862 | |
| ECW | E.C. Wheeler | Springfield Ward Burton and Spencer Rifles Remington Navy Revolvers |
1862-1882 |
| E.D.& CO. | Unknown | Marking on a Model 1795 musket lockplate. | |
| EF | E. Ferrar | Starr M1858 .44 Revolvers | 1860-1868 |
| EF | Edgar Freeman | 1817-1828 | |
| EF | Edward Flather | 1862-1863 | |
| EFD | E.F. Dunbar | 1875 | |
| EH | M1808 Springfield Musket | ||
| EH | Edward Hooker | Remington M1867 Pistol | 1867 |
| EHP | E.H. Pearson | 1898 | |
| EHP | Edwin H. Perry | 1862 | |
| EJ | M1812 Springfield Musket M1842 Springfield Musket |
||
| EJF | E.J. Frost | Barrels | 1864 |
| EKC | E.K. Colton | 1860-1864 | |
| E.L. | Unknown | Kentucky rifle | |
| EM | Edwin Martin | 1862 | |
| EM | Edward Mc Cue | 1862 | |
| EMC | E.M. Camp | Colt M1860 .44 Percussion Revolver | 1860-1863 |
| EMD | Edward M. Dustin | Burnside Carbines | 1862-1863 |
| EMT | E.M. Tinkham | 1898-1906 | |
| ES | Elisha Shaw | 1796 | |
| E.S. | Unknown | Marking on an over-under, percussion rifle. | |
| ESA | E.S. Allin | Civil War Rifles and Muskets Model 1871 .50-70 Rolling Block Rifles |
1850-1871 |
| ET | Edwin Tyler | 1813-1819 | |
| ET | Elisha Toby | North M1816 Navy, M1819 and M1826 Pistols M1818 Springfield Pistols R. Johnson Starr and Waters Muskets 1816-1820 |
1823-1824 and 1826-1830 |
| EWB | E.W. Blake | 1818 | |
| EWB | E.W. Bruce | 1875 | |
| EWC | E.W. Clark | 1870-1879 | |
| EY | M1831 Springfield Musket | ||
| F. | Richard Falley | Charleville Muskets | 1798-1801 |
| FAR | Frances A. Roe | Colt M1860 Army Revolvers | |
| FBT | Colt M1860 .44 Revolvers | ||
| FC | Francis Camp | 1859-1861 | |
| FC | F. Chillingworth | 1875 | |
| FCW | Frank C. Warner | Civilian Remington M1866 .50 Rf Pistols Whitney .36 Percussion Revolvers Plymouth Rifles M1867 Remington Navy Carbine |
1867-1869 |
| FDL | Joslyn Carbines | 1862 | |
| FGF | F.G. Fishier | 1899-1902 | |
| FH | Fred Hanvey | 1862 | |
| FH | Frank Heath | Colt M1873 S.A. .45 Revolvers | 1883-1884 |
| FH | Colt M1859 Revolving Carbine Bayonet | ||
| FHE | F.H. Elwell | 1894-1910 | |
| FHS | Frank H. Schofield | Smith & Wesson and Colt M1895 .38 Revolvers Gatling Gun |
1897-1901 |
| F.J.H. | Unknown | Marking on a percussion Kentucky target rifle. | |
| FL | M1842 Springfield Musket | ||
| FMC | F.M. Chapin 1898 | ||
| FMR | Francis M. Ramsey | Remington M1866 Pistol Pattern Navy Signal Pistol M1861 |
1870 |
| FR | Erank Richard | Springfield | 1871 |
| FR | Frederick Rodgers | Remington M1874 .44 Revolvers | 1870 |
| FR | Franklin Root | 1862-1863 | |
| FRM | Army Signal Pistol M1861 | ||
| FSL | F.S. Leonard | 1899-1902 | |
| FSN | F.S. North | 1862-1863 | |
| FSS | Frederic S. Strong | 1862 | |
| FTC | Frank T. Cleveland | Colt M1873 S.A. .45 Revolvers | |
| FWS | F.W. Sanderson Stocks | Remington Trial Arms | 1862-1879 |
| G.A. | Unknown | Late flintlock period. | |
| GAW | George A. White | 1875 | |
| G.B. | Unknown | Percussion Kentucky rifle. | |
| GBA | G.B. Allen | 1894-1902 | |
| GBF | George B. Foote | 1862-1864 | |
| GC | George Curtis | 1861 | |
| G.C.B. | Unknown | Script marking of a circa 1820 Penna. type Kentucky rifle. | 1820s |
| GD | G. Dillingham | 1875 | |
| GDF | G.D. Fisk | 1875 | |
| GDG | Gilbert D. Greason | 1861 | |
| GDL | George D. Little | Colt M1860 .44 Revolvers | 1862-1865 |
| GDR | G.D. Ramsey Jr | 1863-1865 | |
| GEC | G.B. Cruzen | Remington M1861 New Model Revolver | 1861 |
| GEC | George E. Chamberlain | 1862-1879 | |
| GES | George E. Saunders | 1862 | |
| GF | George Flegel | Waters Muskets Deringer Rifles |
1812-1823 |
| GF | George Flyn | Locks | 1824 |
| GFB | George F. Bowen | 1878 | |
| GFM | George F. Morrison | Starr S.A. .44 Revolvers | 1864 |
| GFT | George F. Tucker | 1862 | |
| G.G. | Unknown | Long, early Kentucky type flintlock smoothbore, Ashmore lock. | |
| GG | Guert Gansevoort | Remington New Model Percussion Revolvers Colt and Whitney Converted Revolvers Aston M1842 Pistol |
1850-1861 |
| GGS | G.G. Saunders | Colt Dragoon Revolvers | 1856 |
| GH | George Haines | 1860 | |
| GH | George Hosmer | Remington M1870 Ward Burton and Spencer Rifles |
1862-1869 |
| GHD | George H. Dupee | 1862-1863 | |
| GHG | George H. Graham | 1862 | |
| GHH | George Hubbard | 1862-1863 | |
| GHM | G.H. Munroe | 1899-1900 | |
| GHS | Gustavus H. Scott | Colt M1860 .44 Revolver | 1828-1873 |
| G.J. | Unknown | Kentucky rifle | |
| GKC | George K. Charter | Starr Navy Revolvers | 1861 |
| GKJ | G.K. Jacobs | Amoskeag M1861 .58 Musket | 1865-1875 |
| GLP | G.L. Prentice | 1875 | |
| GMC | George M. Colvocresses | Whitney Revolvers | 1863-1867 |
| GMR | George M. Ransom | Colt M1851 Converted Revolvers | 1854-1877 |
| GP | George Palmer | 1862 | |
| GP | Giles Porter | Remington New Model and Pettengill Revolvers |
1862-1875 |
| GRC | Remington New Model .44 Revolvers | ||
| G.S. | Unknown | Early flintlock Kentucky rifle with slender wrist, high comb, no patchbox, carved stock. Another, script marking, with patchbox and many inlays. | |
| GSM | G.S. Morse | Starr Revolvers | 1862 |
| GT | Georoe Talcott | 1836-1838 | |
| GTA | G.T. Allen | 1898 | |
| GTB | George T. Balch | Colt and Savage Revolvers |
1861-1862 |
| GTW | G.T. Weaver | 1894 and 1898-1899 |
|
| G.W. | Unknown | Walnut halfstock percussion rifle of indifferent workmanship. Converted factory lock, mother-of-pearl star in cheekpiece. Large letters "G.W." on barrel. Reported first used in 1877 in Moravia, Iowa. | |
| GW | George Wells | Aston Pistols | 1845-1862 |
| GW | George Wright | Aston Pistols | 1850-1852 |
| GWC | George W. Chapin | Starr Revolvers | 1862 |
| GWH | George W. Hamlin | Colt M1851 Revolvers | 1846-1852 |
| GWH | George W. Hartwell | 1845-1855 | |
| GWH | George W. Hagner | 1845-1846 | |
| GWM | George W. Mc Kee | 1874-1878 | |
| GWP | G.W. Patch | Colt 3rd Model Dragoon | 1846-1858 |
| GWR | George W. Rodgers | Colt M1851 .36 Revolvers | 1839-1859 |
| G.W.S. | Unknown | Script marking on barrel of circa 1820 No. Penna. type Kentucky rifle with carved Roman nose stock. | 1820s |
| GWS | G.W. Schuman | Colt Dragoon Revolvers | 1858-1860 |
| GWS | G.W. Shierman | Colt Dragoon Revolvers | 1858-1860 |
| GWS | G.W. Smith | Colt Dragoon Revolvers | 1857 |
| GWS | G.W. Sword | Colt Dragoon Revolvers | 1856 |
| H pierced by arrow | Possible J.B. Kixson mark | Lockplate marking on locks marked "J. C. M. DAYTON" also locks on two rifles by J. B. Hixson. | |
| H. | Unknown | Two Barrel Darling pistols are marked with “H”. | |
| H.B. | Unknown | Marking on the barrel of a Kentucky type, flint lock pistol with lock marked "C. E. Hardy & Co." | |
| HB | Horace Burpee | Amoskeag M1861 .58 Musket | 1862-1865 |
| HB | Unknown | Script monogram die-stamped on the barrel of a percussion Kentucky rifle with engraved patchbox. Four dots in the crossbar of the H. | |
| HBB | Hanson B. Bullock | 1862 | |
| HBC | H.B. Cooley | 1862-1863 | |
| HBH | H.B. Hart | 1875 | |
| HBJ | H.B. Johnson | Remington Beals Navy Revolver | 1862 |
| HD | H. Dana | 1862-1863 | |
| H.D. | Unknown | Percussion Kentucky rifle | |
| HDH | Henry D. Hastings | 1862 | |
| HDJ | Henry D. Jennings | 1862-1863 | |
| HDW | H.D. White | 1898 | |
| HE | Henry Erben | Remington M1867 ,50 Pistol | 1867 |
| HEH | H.E. Hollister | 1862-1863 | |
| HEV | Henry E. Valentine | 1862 | |
| HGF | H.G. Firmin | Remington M1868 and M1869 Rifles Remington Navy Revolvers Sharps Spencer Enfield Rifles |
1868-1882 |
| HGG | H.G. Gould | 1898 | |
| H.H. | Unknown | Marking on a flintlock Kentucky rifle. | |
| HHD | H.H. Denny | 1898 | |
| HHE | Harold H. Eames | Remington-Lee M1884 Rifles | |
| HHH | H.H, Hamilton | Sharps Rifles | |
| HHP | Henry H. Perkins | North Pistols Waters .69 Flintlock Muskets |
1810-1817 |
| HJM | H.J. Melurun | Colt | 1898 |
| H.K. | Unknown | Marking inside Springfield musket lock of musket dated 1799. | |
| HK | Henry Kirk | 1862-1864 | |
| HK | N. Kouschakewitsch | Smith & Wesson Model 3 Russian 2nd and 3rd Model .44 Revolver | |
| HKC | Henry Knox Craig | Waters M1836 Pistols | 1837-1838 |
| HKH | Henry K. Hoff | Whitney Revolvers Sharps & Hankins Carbines |
1865 |
| HLL | H.L. Lathrope | Colt .44 Revolvers | 1862 |
| HM | Henry Metcalfe | Smith &, Wesson Model No. 3, 1st Model 44 Revolver | 1871 |
| HM | H. Murdock | 1875 | |
| HN | Henry Nettleton | Remington Lee Winchester Hotchkiss .45-70 Rifles Colt M1873 S.A. .45 Remington M1875 S.A. .45, Smith & Wesson No. 3 New Model .44 Revolvers Colt Gatling Guns |
1876-1880 |
| HS | H. Saunders | 1875 | |
| HS | Horace Scott | 1878-1885 | |
| HS | Harris Smith | 1862-1879 | |
| HS | Howard Stockton | 1868 | |
| HSH | H.S. Hill | Springfield | 1875 |
| HSL | Homer S. Lathe | 1862 | |
| HT | H. Tracy | 1831-1850 | |
| HTH | M1861 Springfield Musket M1866 Cadet Rifle |
||
| H V D | Unknown | Stamping inside lock of early flintlock Ken tucky rifle. | |
| H.V.F. | Unknown | Marking inside the lock-plate of a Kentucky type flintlock pistol. | |
| HW | Henry Walke | Remington M1866 Pistols | 1866-1868 |
| HWH | Harry W. Hunt | 1899-1902 | |
| HWW | Henry W. Wilcox | Colt M1860 .44 Revolvers | |
| I.A.A.M. | Unknown | Kentucky rifle | |
| I.A.D. | Unknown | Engraved on barrel of very early Kentucky or German rifle of Edward Marshall, who participated in the historic "Indian Walk" Pennsylvania land purchase of 1737. | |
| I.A.M. | Unknown | Percussion Kentucky rifle | |
| IB | Isack Bartlett | Forged Lockplates | 1808 |
| I.E. | Unknown | Initials stamped inside the lock of a plain, colonial flintlock musket, marked "HENRY" on lock and barrel. Possibly John Eberly, gunsmith under William Henry I, Lancaster, Pa., 1729-1786. In the late 18th and early 19th Centuries letters J and I were interchanged rather freely in writing. | |
| I.G. | Unknown | Possibly J. G. Full stock, flintlock Kentucky rifle with con verted lock marked "W. T. HOWELL & CO." | |
| I.G.H. | Unknown | Period of 1810. Flintlock Kentucky rifles. Prob ably same as J. G. H., percussion Kentucky rifles. | |
| IH | Isaac Hull | 1809 | |
| I.L. | Unknown | Full stocked, percussion Kentucky rifle. | |
| I.P. | Unknown | Middle flintlock period Kentucky rifles of fine workmanship. | |
| J | Colt M1873 S.A. 45 Revolvers | 1875 | |
| JA | Joel Abbot | 1812 | |
| JA | J. Arnold Jr | 1869-1871 | |
| JA | John Avis | Waters Flintlock Pistols | 1837-1838 |
| JAD | John A. Dahlgren | M1861 Navy Signal Pistols | 1861 |
| JAG | James A. Greer | 1848 | |
| JAH | John Howell | M1882 Navy Signal Pistols | |
| JAJB | James A.J. Bradford | Hall Carbines | 1833-1835 |
| J.A.R. | Unknown | Percussion Kentucky rifle | |
| JAW | J.A. Wood | 1875 | |
| JB | James Bell | 1827 | |
| JBC | J.B. Cooley | 1898 | |
| JBC | J.B. Craig | 1896-1902 | |
| JBK | John H. Kirkham | Locks | 1823-1841 |
| JBT | J.B. Tyler | 1893 and 1899-1910 |
|
| J.C. | Unknown | Markings inside a Model 1816, Lemuel Pomeroy flintlock musket dated 1826. | |
| JC | James Carrington | Whitney Blake and Starr Muskets |
1803-1804 |
| JC | James Chattaway | 1862-1863 | |
| JCA | J.C. Ayers | Colt Gatling Guns | 1881-1883 |
| JCB | John C. Beaumont | Johnson Pistols Ames Pistols and Cutlass |
1852-1855 |
| JCB | Joseph C. Bragg | R. Johnson Waters and Ames Pistols Colt Dragoon Revolvers Starr Revolvers |
1846-1849 |
| J.C.M. | Unknown | Dayton, Ohio. Percussion locks marked "J. C. M." "Dayton" and letter "H" pierced by an arrow. | |
| JCS | John C. Sharpe | 1837 | |
| JCS | John C. Stebbins | North-Hall Carbines Waters Pistols and Navy Derringer Rifles |
1834-1841 |
| JCS | John C. Symmes | 1847-1861 | |
| J.D. | Unknown | Fancy flintlock Kentucky rifle with raised carv ing, 45 silver inlays; engraved C. Bird & Co., Phila., lock. | |
| JD | J. Dowlar | Barrels | 1811 |
| JD | Joseph Dale | M1815 and M1818 Springfield Pistol | 1815-1818 |
| JDJ | J.D. Johwson | M1819 North Pistol Barrels | 1819-1822 |
| JEC | Joseph E. Craig | 1898-1906 | |
| JEC | Joseph Edger Craig | 1861-1869 | |
| JEC | J.E. Cummings | 1862-1863 | |
| JEG | John E. Greer | Colt and Whitney Revolvers |
1876-1883 |
| JEH | J.E. Hitchcock | 1862-1863 | |
| J.F.B. | Unknown | Kentucky rifle | |
| JFEC | J.F.E. Chamberlian | Smith & Wesson 1st and 2nd Model Schofield 45 Revolvers |
1875 |
| JFR | J,F. Riley | 1898-1910 | |
| JFS | J.F. Sullivam | 1898-1908 | |
| JG | John Garvin | Colt Revolvers | 1875 |
| J.G.B. | Unknown | Half-stock Kentucky rifle with long ramrod tube. | |
| JGB | J.G. Benton | 1866-1881 | |
| JGB | John G. Butler | Colt M1873 S.A. .45 Revolvers | 1887 |
| JGF | J.G. Flagg | 1894-1900 | |
| J.G.H. | Unknown | Percussion Kentucky rifles. | |
| J.G.U. | Unknown | Late flintlock period Kentucky rifles of fine workmanship. | |
| JH | Joseph Hannis | M1838 Waters Pistols | 1838-1862 |
| JH | Joseph Hall | Amoskeag M1861 .58 Musket | 1864 |
| JH | John Hannis | 1862 | |
| JH | James Harris | R. Johnson I.N. Johnson Pistols and Colt 1851 Revolvers |
1837-1851 |
| JH | James Hawkins | Colt 2nd Model Dragoons | 1848 |
| JH | Joseph Harniss | Starr M1817 Rifles Waters M1836 Pistols |
1841-1844 |
| JH | John Hill | 1813-1835 | |
| JHC | J.H. Cooper | Remington M1868, Cadet M1869 Rifles Remington Navy Revolvers |
1870-1871 |
| JHD | J.H. Doyle | 1894 | |
| JHE | J.H. Ewig | 1898 | |
| JHG | J.H. Griffth | Whitney Revolvers | 1862 |
| J.H.H. | Unknown | Late percussion Kentucky rifles | |
| JHH | J.H. Howarth | 1899-1910 | |
| JHH | Joseph H. Hubbard | 1862 | |
| JHL | J.H. Lyons | 1898 | |
| JHM | James H. Mc Guire | 1862 | |
| JHW | J.H. Wowarth | 1898 | |
| J.I.H. | Unknown | Initials stamped on barrel of German silver mounted half stock (originally fullstock?) percussion Kentucky rifle with back action lock by Moore, Henszey & Co. | |
| J.J. | Unknown | Marking on an over-under, flintlock Kentucky rifle. This marking is also found on percussion Kentucky rifle. | |
| J.J. or I.I. or even S.S. | Unknown | Heavy percussion Kentucky rifle with H. Elwell lock, J. B. Reynolds barrel. | |
| JJC | John J. Cornwell | 1847-1867 | |
| JJJ | Joslyn Carbines | 1862 | |
| J.J.K. | Unknown | Marking on an over-under, flintlock Kentucky rifle. This marking is also found on percussion Kentucky rifle. | |
| JJL | J.J. Lee | 1898 | |
| JJM | J.J. Murphy | 1898 | |
| JK | J. Kimball | 1875 | |
| JKB | Gibbs .52 Carbine | 1862 | |
| J.L. | Loe Long? | Roman nose butt, flintlock Kentucky rifle. | |
| JL | Joseph Lanman | Ames Pistols | 1837-1845 |
| JL | J. Lipped | 1875 | |
| JLC | Joseph L. Cottle | Colt M1860 .44 and M1873 S.A. .45 Revolvers | 1863-1875 |
| JLH | James L. Henderson | Colt M1851 and M1861 .36 Revolvers | 1858-1861 |
| JLS | J.L. Sticht | Smith & Wesson and Colt M1895 .38 Revolvers |
1895-1904 |
| JLS | J.L. Strong | 1896-1902 | |
| J.M. | Unknown | Markings on a full stock, percussion Kentucky rifle. | |
| JM | John Maggs | 1862 | |
| JM | Julian Mcallister | 1865 | |
| JM | J. Mills | 1875 | |
| JM | Joseph Morgan | North and Cheney Pistols | 1798-1802 |
| JM | Justice Murphy | 1841 | |
| JM | Justin Murphy | Jenning Pomeroy Starr Springfield Mfg. Co. Waters North and R. Johnson |
1813-1833 |
| JMBC | J.M.B. Clitz | Remington Rolling Block M1870 Pistols | 1867 |
| JMC | J.M. Crighton | 1894-1910 | |
| JN | John Newbury | R.Johnson Starr North Springfield Pomeroy Waters 69 Flintlock Muskets |
1817-1826 |
| JN | John Nicholson Sr. | Musket Barrels | 1797-1798 |
| JN | John Nicholson Jr. | 1799-1807 | |
| JN | John Norman | 1830 | |
| JNJ | John N. Jordan | Winchester-Lee 6mm Rifles | 1891-1895 |
| JNS | J.N. Sollaceo | 1831-1850 | |
| JO | J. 0'Malley | 1896-1902 | |
| JOS*AN | Possibly Joseph Angstatt, Penna. rifle maker. | Marking on a very early flintlock Kentucky rifle. | |
| JP | James Perkin | 1815 | |
| JP | Jacob Perkins W | Waters .69 Flintlock Muskets | 1819-1821 |
| JP | Joseph Perkins | 1798 | |
| JP | John Pope | 1843 | |
| JPC | James P. Chapman | Ames M1843 Pistol | 1848 |
| JPF | J.P. Farley | Smith & Wesson and Colt Revolvers |
1874-1876 |
| JPO | James P. Oeller | J.J. Henry Boulton Pistols |
1809-1848 |
| JPW | Joseph P. Wells | 1863 | |
| JR | Colt M1861 Conversion Revolvers | ||
| J.R. | Percussion Kentucky rifles. | ||
| JRE | John R. Edie | Colt | 1874 |
| JRG | John R. Guldsbourough | Whitney Revolvers Colt M1851 and M1861 Revolvers Savage Navy Revolvers |
1864 |
| JRG | J.R. Graham | 1875 | |
| JRJR | James Rockwell Jr. | Smith & Wesson Schofield Revolvers | 1874-1876 |
| JRM | J.R. Mc Ginness | 1868-1869 | |
| JRMM | J.R.M. Mullany | Colt M1851 .36 Revolvers | |
| J.S. | Jacob Silvis? | Kentucky rifles. | |
| JS | Jacob Shough | Henry Fry an d Guest Pistols Henry Rifles |
1809-1811 |
| JS | Joseph Smith | 1809-1837 | |
| JS | Josiah Snell | North & Cheney Pistols | 1800-1801 |
| JS | John Stahl | 1868 | |
| JS | John Stebbins | 1819-1835 | |
| JS | James Stillman | 1831-1850 | |
| JS | James Stubblefield | Harpers Ferry M1807 and M1807 Pistols Harpers Ferry Rifles and Muskets |
1807-1821 |
| JS | John Symington | M1855 Springfield Rifles and Muskets | 1832-1863 |
| JSB | J.S. Burns | 1898-1910 | |
| JSC | J.S. Chauncey | 1812 | |
| JSC | J.S. Cooley | 1898 | |
| JSD | John S. Dexter | 1798 | |
| JSD | James S. Dudley | Colt M1860 and Starr .44 Revolvers |
1861-1870 |
| JSD | John S. Duston | 1862-1863 | |
| J.S.T. | Unknown | Curly maple, full stock, brass trim, percussion Kentucky rifle engraved "J.S.T." in script on octagonal barrel. | |
| JT | Joseph Tarbell | 1798-1815 | |
| JT | John Taylor | Colt M1860 Revolvers Star and Savage .36 Revolvers Sharps New Model 1859 Military Rifle |
1861-1862 |
| JT | Josiah Tatnel | Massachusetts Arms Adams Revolvers |
1858 |
| JT | Jerome Towne | 1862-1863 | |
| JTB | James T. Baden | Remington Starr and Savage Revolvers |
1862-1864 |
| JTC | John T. Cleveland | Colt M1873 S.A. Smith & Wesson and Savage Revolvers |
1856-1877 |
| JTT | John T. Thompson | Colt .45 and Smith & Wesson M1899 .38 Army Revolvers |
1896-1902 |
| J.W. | Unknown | Percussion Kentucky rifle with artificially striped stock. | |
| JW | Joseph Weatherhead | Waters .69 Flintlock Muskets North M1819 Pistols and Starr Waters R. Johnson and Pomeroy Muskets and Rifles |
1821-1822 1825 and 1829 |
| JW | John Wilder | Enfield Sharps and Spencer Rifles |
1868 |
| JW | John Williamson | 1838-1849 | |
| JWE | J.W, Ewig | 1898-1910 | |
| J.W.G. | Unknown | Late percussion Kentucky rifle. | |
| JWK | John W. Keene | 1862-1863 | |
| JWK | John W. Kelly | Remington and Starr .44 Revolvers |
1853-1864 |
| JWL | M1868 Rifles | ||
| J.W.R. | Unknown | Flintlock Kentucky rifle with 2 patch boxes; one on each side of the stock. | |
| JWR | James W. Reilly | Remington .44 Revolvers | 1859-1895 |
| JWR | James W. Ripley | 1832-1860 | |
| K over a leaping animal (buck or rabbit) | Unknown | Proof mark on a late percussion Kentucky rifle barrel bored out smooth to .69 caliber, with Jas. Golcher, Philadelphia, back action lock. | |
| KLH | M1855 Springfield Musket | 1858 | |
| KMD | K.M. Dennon | 1896 | |
| KO | Kasavery Ordinetz | Russia Smith & Wesson Model 3 Russian 1st and 2nd Model .44 Revolver | |
| KSM | Kelley S. Morse | Winchester M1895 Rifles Smith & Wesson M1899 38 Revolvers Colt M1911 .45 Pistols Gatling Guns |
1893-1915 |
| KW & A | Probably Ketland, Walker & Adams, listed in Birmingham, England in 1818. | Though not American gunmakers, listed as marking likely to be found on American made rifles. Stamping inside a flint Kentucky rifle lock marked externally "KETLAND & CO." | |
| L | Samuel B. Lewis | Colt M1873 S.A. .Revolvers | 1875 |
| L | Laley | 1844-1854 | |
| L | Davld A. Lyle | Smith & Wesson 1st and 2nd Model Schofield 44 Revolvers |
1876-1880 |
| L.A.B. | Unknown | Flintlock Kentucky rifle of good workmanship. | |
| LAB | Lester A. Beardslee | Starr Revolvers | 1860 |
| LBC | Luke B. Chase | Aston Revolvers | 1850-1861 |
| LC | Lyman Converse | Spencer Rifles | 1863 |
| LCA | Lucian C. Allin | Colt Dragoon Massachusetts Arms Co. Adams and Starr Revolvers |
1859 |
| LCB | L.C. Brown | 1874 | |
| LD | Lewis Draper | Colt | 1876 |
| LF | Lewis Foster Jr. | Waters M1836 Pistols | 1837 |
| LG | Lewis Ghriskey | Barrels | 1811 |
| LGG | L.G. Gilmore | 1896-1904 | |
| LJM | L.J. Megette | 1898 | |
| LL | Luther Luge | 1841 | |
| LMF | Lewis M. Ferry | 1863 | |
| LN | L. Newell | Sharps and Springfield Rifles |
1876-1885 |
| L.P. | Unknown | Ornamented percussion Kentucky rifle | |
| LP | L. Papanti | 1898 | |
| LPD | L.P. Dustin | 1894 | |
| LS | Luther Sage | North M1813, M1816 and M1819 Pistols R. Johnson Waters Whitney Pomeroy and Starr Muskets Springfield M1815 and M1818 Pistols |
1813-1836 |
| L. & W. | Unknown | Flintlock Kentucky rifle | |
| LW | Leicaster Wheeler | 1818 | |
| M | Unknown | Possibly Ohio, crude, homemade percussion (possibly converted) fullstock rifle with strap-iron trigger guard. Marked "M" on barrel. | |
| M | Benjamin Moore | North Pistols Waters .69 Flintlock Muskets |
1810-1817 |
| MEH | M.E. Hawkins | 1898 | |
| M.H. | Unknown | Percussion Kentucky rifles of fine workmanship. | |
| MH | Michael Hayes | Colt M1860 Revolvers | 1860 |
| MLM | Moses L. Morse | 1822-1824 | |
| MM | M. Moulton | Savage and Colt M1851 .36 Revolvers Palmer Carbines |
1861-1864 |
| MMJ | Martin M. Johnson | 1862-1863 | |
| MPB | M.P. Benjamin | 1899-1910 | |
| MPL | M.P. Lomax | Waters and R. Johnson Pistols Hall Carbines |
1837-1843 |
| MRM | M.R. Marsh | Colt .38 Revolvers | 1898 |
| M.S. | Unknown | Percussion Kentucky rifle | |
| MTK | Martn T. Krepps | 1862-1863 | |
| MTW | Marine T. Wlckham | Evans Muskests North Pistols Harpers Ferry |
1811-1815 |
| MWC | M.W. Carr | 1862-1863 | |
| N. | Unknown | Marking on a Kentucky type pistol | |
| NB | Nehemiah Baden | North M1816 Pistol | 1813-1820 |
| NCT | Nathan C. Twining | Colt M1895 .38 Revolvers Winchester-Lee 6mm Rifles |
1885-1895 |
| NF | Noah Foot | 1824 | |
| NF | Nathan Forbes | 1798-1801 | |
| N.I.J. | Unknown | Script initials on a fine, silver-inlaid percussion Kentucky rifle | |
| NO | Noble Orr | North and Cheney Pistols Whitney Muskets |
1798-1802 |
| NW | Nathaniel Whiting | 1862 | |
| NWP | Nahum W. Patch | Colt Walker and 1st Model Dragoon Revolver Ames and R. Johnson Pistols Starr Rifles North-Hall Carbines Waters .69 Flintlock Muskets |
1831-1849 |
| OA | Oliver Allen | North M1816 Pistols | 1816-1818 |
| OD | Otis Dudley | North and Hall Rifles |
1830 |
| O.M. | Unknown | Heavy, home-made buffalo rifle, oak half stock with sowbelly butt. Remington Cast Steel barrel. Initials "O.M.", cut in pewter fore-end tip, both sides. | |
| ONP | O.N. Perkins | 1898 | |
| ORG | O.R. Graham | 1875 | |
| OS | Oliver Serton | 1841 | |
| OWA | O.W. Aimsworth | Smith & Wesson No.3 .44 M1869 Remington and Colt Percussion and Conversion Revolvers Colt Gatling Guns |
1831-1870 |
| P.B. | Unknown | Marking on Kentucky rifles | |
| PB | Peter Barrett | Colt M1860 and M1861 Revolvers | 1861-1868 |
| PB | Pomeroy Booth | 1862 | |
| PBBH | P.B.B. Havens | 1875 | |
| PC | Pierce Crosby | Whitney Navy Revolvers | 1870 |
| P.C.V.R. | Unknown | Stamped inside hand-forged lock of early flintlock Kentucky rifle by I. P. Beck. | |
| P.F. | Unknown | Marking on Kentucky rifle. | |
| P.G. | Peter Getz | 1803 and 1806-1808 |
|
| P.G.F. | Unknown | Silver inlaid, cheekpiece, curly maple full stock, octagonal barrel, percussion Kentucky rifle. | |
| P*I | Unknown | Part marking on locks and barrels by Desverneys, Charleston, S. C. | |
| P.K. | Unknown | Pennsylvania made Kentucky rifles. | |
| P.L.H. | Possibly P. L. Hain of Pa. | Kentucky rifles | |
| PNC | Starr M1863 .44 Revolvers | ||
| P.P.P. | Unknown | On October 27, 1775, Robert Towers, an employee of the Pennsylvania state gun factory, was ordered to stamp all muskets produced and proved in the city of Philadelphia with the letter P. | |
| P.R. | Unknown | Flintlock Kentucky rifles. Lock by R. & W. C. Biddle. | |
| P.S.J. & CO. | P. S. Justice? | Percussion Kentucky type pistol. | |
| PTC | Patrick Thomas Cunningham | 1863-1864 | |
| PTS | P.T. Safford | 1874 | |
| PW | Joslyn Carbines | 1863 | |
| P.Y. | Unknown | Make on a full curly maple stock, brass mounted, double set trigger, Kentucky type percussion rifle. | |
| RAC | Rinaldo A. Carr | Colt .38 and .45 Revolvers and Pistols Gatling Guns |
1889-1909 |
| RB | Robert Beals | Colt | 1862 |
| RB | Roger Birnie Jr. | 1879-1880 | |
| RB | Robert Blanchard | North and Hall Carbines |
1831 |
| RC | Russel Curtis | M1815 and M1818 Springfield Pistol Stocks | 1818 |
| RC | Rufus Chandler | Ames M1844 and M1845 Pistols Ames Cutlass |
1831-1850 |
| RE | R. Ellis | 1818 | |
| R.F. | Unknown | Bedford County, Pa. Percussion Kentucky rifles. | |
| R.F.S. | Unknown | Plain percussion Kentucky rifle, brass mounted without patchbox. | |
| R.H. | Unknown | Percussion Kentucky rifle. | |
| RHB | R.H. Bailey | Cadet M1869 Remington Rifles Sharps Trial Carbines |
1870-1885 |
| RHKW | Robert Henry Kirkland Whiteley | Aston Navy Pistols Colt Dragoon M1851, Starr and Savage Revolvers Sharps Carbines |
1838-1875 |
| R.H.P. | Unknown | Percussion rifle. | |
| RJ | Robert Johnson | 1822-1826 | |
| RKA | Remick K. Arnold | 1862-1877 | |
| RL | Roswell Lee | Waters .69 Flintlock Muskets | 1817-1830 |
| RLB | Rufus L. Baker | 1818-1820 | |
| RMH | R.M. Hill | 1875-1876 | |
| RO | Robert Orr | North and Cheney Pistols Whitney Muskets |
1798-1808 |
| RP | Ricnard Paine | Ames Pistols Jenks Carbines By Ames and Remington M1842 Deringer Pistol |
1843-1848 |
| RPB | R.P. Barry | Remington Starr Rogers & Spencer Revolvers |
1860-1865 |
| RPB | Robert P. Beales | 1862-1879 | |
| RPP | Robert P. Parrott | 1836 | |
| RS | Rufus Sibley | Waters .69 Flintlock Muskets | 1814-1815 |
| RS | Richard Smith | 1806-1830 | |
| RSL | Robert S. Lamotte | Sharps Rifles | 1861-1869 |
| RTS | R.T. Safford | 1862-1885 | |
| RWM | Robert W. Mc Neely | 1890 | |
| RWM | Richard W. Meade | Colt M1851 and M1861 Converted Revolvers | 1860-1867 and 1873-1876 |
| S | Shaeffer | 1844-1854 | |
| SA | Samuel Alexander | 1808-1810 | |
| SA | S. Adams | 1860 | |
| SAD | S.A. Dinsmore | 1862-1863 | |
| S.B. | Unknown | Barrel marking of an circa 1820, flintlock Ken tucky rifles of north-central Penna. provenance. On one spesimen the patchbox lid is engraved "BERLIN" in script. | 1820s |
| SB | Samuel Barron | 1827-1845 | |
| S.B. in oval | Unknown | Stamped under breech of A. Gumpf halfstock percussion rifle. | |
| SBL | Samuel B. Lathrope | 1818 | |
| S.C. | State of Connecticut | Initials to denote ownership by State of Connecticut. | |
| SC | Silas Crispin | Remington M1861 Revolvers | 1862 |
| SC | Samuel Cushing | Army Signal Pistol M1861 | |
| SCR | Stephen C. Rowan | Colt M1851 Conversion Revolvers | 1850-1860 |
| S.D. | Unknown | Good Kentucky rifles. | |
| SD | Samuel Dale | 1817 | |
| SD | Stephen Danks | 1863 | |
| SEB | Stanhope English Blunt | Colt Revolvers | 1889-1890 |
| S.G.B. | Samuel Border of Bedford Co., later Somerset Co., Pa.? | Maker of a full curly maple stock percussion rifle. | |
| SH | Samuel Hawkins | 1862 | |
| SHB | S.H. Broughton | 1899-1910 | |
| SHW | Sheffield H. Wright | Amoskeag M1861 .58 Muskest | 1862-1864 |
| SJ | Seth James | Pomeroy Muskets | 1818-1824 |
| SK | Samuel Keeler | Colt First Model Dragoon | 1848 |
| SK | S. Knows | Ashton Pistols Colt Dragoons |
1846-1852 |
| S.L. | Unknown | Marking in script on Pennsylvania made Kentucky rifle. | |
| SL | Samuel Leonard | Colt and Savage Revolvers |
1862-1875 |
| SLT | S.L. Tuttle | 1894 | |
| SLW | Samuel L. Worsley | 1862-1863 | |
| S.M. | Unknown | Marking on a pair of flintlock Kentucky type pistols carried by Col. Nathan Dennison at Battle of Wyoming, Pa., July 3, 1778. | 1770s |
| SM | Samuel Marcy | 1852-1862 | |
| SM | Stillman Moore | Aston Pistols | 1846-1852 |
| S.N. & W.T.C. | Norris, S. & W. T. Clement | ||
| S.P. | State of New Jersey marking for "State Property." | ||
| SPB | Samuel P. Baird | Starr and Whitney Revolvers |
1861-1873 |
| S.R.F. | Unknown | Waynesboro, Pa. Kentucky rifle. | |
| S.S. | Unknown | Flintlock Kentucky rifles. | |
| STB | Samuel T. Bugbee | Starr Revolvers | 1861 |
| S.T.S. | Mark of Samuel Todd Sherwood. | ||
| SWP | S.W. Porter | 1859-1863 | |
| S.V.J.D. | Unknown | Marking on late flintlock period, highly decorated Kentucky rifles. | |
| TA | Thomas Annely | Musket and Pistol Barrels | 1796 |
| TAB | Theodore A. Belknap | 1862 | |
| T.A.T. | Unknown | Marking on a barrel of a two-shot, single barrel, percus sion, Kentucky type rifle. | |
| T.B. & CO. | Unknown | Philadelphia, Pa. Percussion derringers. | |
| TBH | Thomas B. Hawks | 1862-1863 | |
| T.D. | Unknown | What looks like "T. D." in old German script on a long flint lock Kentucky rifle, is "C. D." The initials of Christian Durr. The barrel is marked under breech "C. H. D." | |
| T.D. & CO. | Unknown | Stamped factory percussion lock on boy's Kentucky rifle. | |
| TFJ | Thomas F. Jewell | Navy M1882 and M1894 Signal Pistols | |
| T.H.S. | Thomas Holdup Stevens, U. S. Inspector of Contract Arms (ship's cutlasses) in 1816 at the plant of Nathan Starr. | Starr Cutlass | 1816 |
| TJF | T.J. Fitzpatrick | 1898 | |
| TJS | T.J. Stevenson | Springfield Rifles | 1870-1879 |
| TKL | Joslyn Carbines | 1863 | |
| T.P. | Curly maple, full stock, percussion Kentucky rifle. | ||
| T.P. | Thomas Palmer, U. S. Inspector of Arms 1808-10. | Henry Fry Guest Brong Cook and Shuler Pistols |
1808-10 |
| TPM | T.P. Maroney | 1898 | |
| T.R. | An early percussion Kentucky rifle with hand hammered barrel marked in script, 16 silver inlays, long patch box with side plates shaped and engraved to represent snakes. | ||
| T.S. | Marking on a percussion Kentucky Squirrel rifle. | ||
| T.S. | Tobias Snider, Liberty Township, Bedford County, Pa. | Maker of a side-by-side, double barrel, curly maple stock, percussion Kentucky type rifle, as well as of percussion, Kentucky single barrel rifles. | |
| TS | Thomas Sangster | 1812 | |
| TS | Townsend Stith | 1810 | |
| TS | Thomas Stockton | 1812-1825 | |
| TS | Thomas Stuart | 1813 | |
| TTSL | Theodore T.S. Laidley | 1864-1866 | |
| TV | Thomas Valentine | 1863 | |
| TW | Thomas Warner | R. Johnson Pistols Watens .69 Flintlock Muskets |
1833-1837 |
| TWB | T.W. Booth | Sharps Rifles and Carbines | 1861-1865 |
| TWC | Thomas W. Cafer | Confederate Copy of Whitney Revolvers | 1863 |
| TWR | Thomas W. Russell | 1862 | |
| UPS | Urial P. Strong | 1862 | |
| VCW | M1806 Harpers Ferry Pistols | ||
| VLB | V.L. Bennett | 1875 | |
| W. | Unknown | Marking on barrel of fine relief carved Kentucky rifle circa 1800-1810. | 1800s |
| W | Charles Woodman | Smith & Wesson Model 3 Russian 2nd and 3rd Model .44 Revolver Smith & Wesson 2nd Model Schofield .44 Revolver |
1876-1877 |
| W | E.C. Wheeler | Colt M1873 S.A. .45 Revolvers | 1878 |
| W.A. | Unknown | Middletown, Conn. Percussion under-hammer pistols. | |
| WAB | W.A. Benjamin | 1898 | |
| WAB | W.A. Bennet | 1898 | |
| W.A.T. | William Anderson Thornton, Ordnance Dept.,U. S. Army. Inspector of Contract Arms | Nippes M1840 Musket Ames Aston R. Johnson and Waters Pistols Massachusetts Arms Adams Remington Beals Savage Colt Paterson Walker and Dragoon Revolvers Joslyn Carbines Colt Revolving Rifles |
1840-1861 |
| WB | William Blanchard | 1831 | |
| WB | William Bradbury | 1860 | |
| WB | William Brown | 1862 | |
| WC | William Cadwell | Remington Beals .44 Percussion Revolvers | 1860-1861 |
| WCF | W.C. Fielding | 1898-1907 | |
| WCW | Sharps and Hankins Carbines | 1863 | |
| WD | Willlam Dickinson | 1849-1850 | |
| WDN | William D. Nicholsun | Remington M1866 Pistols | 1866 |
| WDW | W.D. Whiting | Remington M1867 Pistol Barrels | |
| W.E. | William Evick | Flintlock and percussion longrifles | 1898 |
| WEB | W.E. Benjamin | 1803-1886 | |
| WFB | W.F. Bradbury | 1898-1902 | |
| WGC | W.G. Chamberlain | 1859-1875 | |
| W.G.M. | Unknown | Kentucky rifles with very dark stocks. | |
| WH | Wescon Hudgins | Rigdon, Ansley & C0. .36 Revolvers | 1863 |
| WHB | William H. Barber | 1862 | |
| WHB | W.H. Brundrett | 1898-1900 | |
| WHB | William H. Bulkey | 1862 | |
| WHC | William H. Carver | 1862-1863 | |
| WHC | William H. Chandler | 1862-1863 | |
| WHC | W.H. Clayton Colt | 1898-1901 | |
| WHR | William H. Roberts | Colt M1860 .44 Revolvers | 1863 |
| WHR | William H. Russell | 1862-1863 | |
| W.J. | Unknown | A plain percussion Kentucky rifle with factory lock. | |
| WJC | W.J, Clark | 1898 | |
| WJJ | M1865 Joslyn Conversion Rifle | ||
| W.K. | Unknown | Early Kentucky rifle, flintlock period. | |
| W.L. | Unknown | Kentucky rifle | |
| WLB | William L. Bates | Remington Navy Revolvers | 1870-1879 |
| WLB | 1844-1854 | ||
| WLC | W.L. Crowl | 1898-1902 | |
| WM | William Maynauier | 1838-1863 | |
| WMF | William M. Folger | Hotchkiss and Remington-Lee .45-70 Rifles |
1873-1875 |
| WML | W.M. Lyndon | Colt | 1898 |
| W.M.M. | Unknown | Percussion underhammer pistols | |
| WMM | W.M. Mills | 1894 | |
| W.N. | Walter North, U.S. Inspector of Arms | Aston Pistols Colt M1851 .36 Revolvers |
1831-1852 and 1859-1863 |
| W.N. & S. | Winner, Nippes & Co., Nippes, Daniel, and Steinman, John | ||
| WNJ | W.N. Jeffers | Navy M1861 Signal Pistol | |
| W.P. | William Pannebecker? | ||
| WP | William Page | 1863 | |
| WP | William Prince | Whitney Muskets | 1875-1877 |
| WPP | W.P. Pulcifer | 1896 | |
| WR | William Richardson | 1808 | |
| WR | William Russell | 1808 | |
| WRS | W.R. Snipley | 1898 | |
| WS | William Smith | Evans Barrels and Bayonets | 1828-1841 |
| WSW | William S. Wood | 1862-1863 | |
| WT | William Turnbull | 1843-1851 | |
| W.W. | Unknown | Light flintlock Kentucky rifle, slim-wrist maple fullstock with a high comb, brass patchbox. | |
| WW | William Walter | Remington-Elliot M1861 Pettengill .44 Revolvers |
1862-1864 |
| WW | Wallace Whitney | Amoskeag M1861 .58 Musket | 1863-1865 |
| WWB | W.W. Bartlett | 1899-1904 | |
| WWK | W.W. Kimball | Remington-Lee .45-70 Rifles Colt .38 Revolvers Pratt-Whitney 37mm Revolving Cannon |
1879-1889 |
| WWS | W.W. Street | 1874-1875 | |
| Y | Jonathan Young | Whitney Revolvers | 1844-1854 |
| ZB | Zadock Butt | 1862 |
