Schuyler, Hartley & Graham was the largest firearm dealer in the United States in 1860.
[1][2] Jacob Rutsen Schuyler (1816–1887), Marcellus Hartley (1828–1902) and Malcolm Graham (1832–1899) incorporated their company on March 1, 1854.
[1] In 1876 Schuyler retired from the company and by 1880 they changed the name to Hartley and Graham.
[1] Marcellus Hartley died on January 8, 1902.
[4] The archives are held by the McCracken Research Library.