534 works carry all of these threads.
Bierstadt Brothers, active 1859 - 1866 · c. 1861
Unidentified Artist · c. 1861-65 (after earlier photograph)
Hill and Adamson · 1843–47
Fred Miller, 1868 - 1936 · 1909
Jesse Sumner Wooley, 1867 - 1940 · c. 1900
Charles DeForest Fredricks, 11 Dec 1823 - 25 May 1894 · c. 1863
Charles F. Conly, 1846 - 1892 · c. 1884
Unidentified Artist · c. 1861-62
Unidentified Artist · c. 1860
James Landy, 12 Aug 1838 - 18 Nov 1897 · c. 1880
José María Mora, c. 1847 - 18 Oct 1926 · c. 1880-85
Carleton E. Watkins, 11 Nov 1829 - 23 Jun 1916 · c. 1870
Fred Hartsook, 26 Oct 1876 - 30 Sep 1930 · c. 1915
Mathew Brady Studio, active 1844 - 1894 · c. 1862 (printed c. 1863/1864)
