499 works carry all of these threads.
American Stereoscopic Co., c. 1895 - 1915 · c. 1860
German Wolf (signed by artist) · 1871
Mathew B. Brady, 1823? - 15 Jan 1896 · 1862
Brown Brothers Studio, active c. 1900s - 1940s · c. 1925
Alexander Hesler, 12 Jul 1823 - 5 Jul 1895 · c. 1857
Bell & Brother, active 1865 - 1875 · 1869
Unknown · 1870s
Allen & Ginter · ca. 1888
John Carbutt, 2 Dec 1832 - 28 Jul 1905 · c. 1870
John F. Jarvis, active 1875 - 1886? · after 1870
Mathew B. Brady, 1823? - 15 Jan 1896 · 1869
Bradshaw & Godart, active 1876 - 1878 · 1876
Jesse Briggs, ? - 21 Aug 1883 · c. 1865
Edward D. Ritton, 1823 - 1892 · c. 1865
Mathew Brady Studio, active 1844 - 1894 · c. 1864
Mathew Brady Studio, active 1844 - 1894 · c. 1862
