530 works carry all of these threads.
Pach Brothers Studio, active 1867 - 1993 · c. 1904
Kilburn Brothers, active 1865 - 1909 · c. 1890
Bell & Brother, active 1865 - 1875 · 1869
American Stereoscopic Co., c. 1895 - 1915 · c. 1860
Unidentified Artist · c. 1861-62
Whitehurst Studio, active 1849 - 1860 · c. 1865
Alexander Gardner, 17 Oct 1821 - 10 Dec 1882 · c. 1860
Meade Brothers Studio, active c. 1840 - c. 1869 · c. 1860 (after 1853 daguerreotype)
Unidentified Artist · c. 1872
José María Mora, c. 1847 - 18 Oct 1926 · c. 1880-85
Andrew W. Jordan, c. 1805 - ? · c. 1881
Clarence Hudson White, 8 Apr 1871 - 8 Jul 1925 · c. 1906
Unidentified Artist · c. 1861-65 (after earlier photograph)
Unidentified Artist · c. 1865