500 works carry all of these threads.
Frank Weston · c. 1880
José María Mora, c. 1847 - 18 Oct 1926 · c. 1897
Alexander Gardner · 1862
Ashford Brothers & Co. · ca. 1864
William Curtis Taylor, active 1863 - 1890 · c. 1889
Ernest Eugène Appert · 1870–71
Henry Ulke, 29 Jan 1821 - 17 Feb 1910 · 1860
Carleton E. Watkins · 1866
Mathew B. Brady, 1823? - 15 Jan 1896 · c. 1870
Mathew Brady Studio, active 1844 - 1894 · 1863
Kilburn Brothers, active 1865 - 1909 · c. 1875
ca. 1000–1050
500–650
Frederick Gutekunst, 25 Sep 1831 - 27 Apr 1917 · c. 1875
Unidentified Artist · c. 1865
Mathew B. Brady, 1823? - 15 Jan 1896 · c. 1877
