522 works carry all of these threads.
Carleton E. Watkins, 11 Nov 1829 - 23 Jun 1916 · c. 1870
Baron Adolph de Meyer, 1 Sep 1868 - 6 Jan 1946 · 1920
George Gardner Rockwood, 12 Apr 1832 - 10 Jul 1911 · c. 1860
Seneca Ray Stoddard, 1844 - 1917 · c. 1870
Henry Hamilton Bennett, 1843 - 1908 · 1887
Unidentified Artist · c. 1861-62
Mathew B. Brady, 1823? - 15 Jan 1896 · c. 1870
Gurney & Son, 1860 - 1874 · c. 1876
Unidentified Artist · n.d.a.
Unidentified Artist · c. 1861-65 (after earlier photograph)
Bradley & Rulofson, active 1863 - 1878 · c. 1875
José María Mora, c. 1847 - 18 Oct 1926 · before 1880
Unidentified Artist · c. 1875
Brady's National Photographic Portrait Galleries · 1858
Peter A. Juley & Son, active 1896 - 1975 · 1930
Harry Warnecke, 1900 - 1984 · 1940