375 works carry all of these threads.
Unidentified Artist · c. 1870
Lewis E. Walker, 1822 - 1880 · 1877
Thomas A. Gray, active 1863 · 1863
Unidentified Artist · c. 1861-65 (after earlier photograph)
Philp & Solomons, active 1860s · c. 1865
E. & H. T. Anthony & Company, active 1852 - 1901 · c. 1870
Allen & Ginter · ca. 1888
William Frank Browne, ? - 1867 · c. 1863
Kilburn Brothers, active 1865 - 1909 · c. 1890
Kinney Brothers Tobacco Company · 1890
T. W. Smillie, active late 19th century · after 1870
Mathew Brady Studio, active 1844 - 1894 · c. 1862
Unidentified Artist · c. 1881
W. Duke, Sons & Co. · ca. 1891
Unidentified Artist · after 1870
Mathew B. Brady, 1823? - 15 Jan 1896 · c. 1869