Image from Wikimedia Commons
Joseph Villevieille (1829-1916) - Public Domain
John Singer Sargent - Public Domain
University of Oregon -
Sol Hurok (concert promoter). There is a photographer's signature at lower right, but I can't make out what it says. - Public Domain
Colonel David D. Barrett - Public Domain
unknown - Public Domain
Barbararz - CC0 1.0
Josef Kriehuber - Public Domain
No photographer named in original source. - Public Domain
National Photo Company Collection (Library of Congress) - Public Domain
Barrauds Ltd., London, (1892-1904) Reference:Michael Pritchard (1994) ''A Directory of London Photographers 1841-1908'' -
Joop van Bilsen (ANEFO) - CC0 1.0
Idont - CC BY-SA 4.0
Brumurph - CC BY-SA 4.0
unknown -
Ruth ellen kocher - Public Domain
Image from Wikimedia Commons
Bullitt, William C. (William Christian), 1891-1967
Image from Wikimedia Commons
Morell, Theodor Gilbert, 1886-1948
Image from Wikimedia Commons
May, Karl, 1842-1912
Image from Wikimedia Commons
Joseph Villevieille (1829-1916) - Public Domain
Vanloo, Jean-Baptiste, 1684-1745
Image from Wikimedia Commons
Aycock, William B. (William Brantley), 1915-
Image from Wikimedia Commons
Lajoue, Jacques de, 1686 or 1687-1761
Image from Wikimedia Commons
John Singer Sargent - Public Domain
Sassoon, Sybil, 1894-1989
Image from Wikimedia Commons
University of Oregon -
Wilson, O. Meredith, 1909-1998
Image from Wikimedia Commons
Sol Hurok (concert promoter). There is a photographer's signature at lower right, but I can't make out what it says. - Public Domain
Dobbs, Mattiwilda
Image from Wikimedia Commons
Colonel David D. Barrett - Public Domain
Barrett, David D. (David Dean), 1892-1977
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unknown - Public Domain
Evans, John, Sir, 1823-1908
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unknown - Public Domain
Kimball, Charles Frederick, 1831-1903
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unknown - Public Domain
Potter, Walter, 1835-1918
Image from Wikimedia Commons
Barbararz - CC0 1.0
Romanowiczowa, Zofia
Image from Wikimedia Commons
Josef Kriehuber - Public Domain
Gyrowetz, Adalbert
Image from Wikimedia Commons
No photographer named in original source. - Public Domain
Horn, Kahn-Tineta, 1940-
Image from Wikimedia Commons
unknown - Public Domain
Pierson, Henry Hugo, 1815-1873
Image from Wikimedia Commons
National Photo Company Collection (Library of Congress) - Public Domain
Butler, Nicholas Murray, 1862-1947
Image from Wikimedia Commons
Barrauds Ltd., London, (1892-1904) Reference:Michael Pritchard (1994) ''A Directory of London Photographers 1841-1908'' -
Winter, John Strange, 1856-1911
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unknown - Public Domain
Arndt, Johann, 1555-1621
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Heinrici, Gotthard, 1886-1971
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unknown - Public Domain
Kundt, August, 1839-1894
Image from Wikimedia Commons
Joop van Bilsen (ANEFO) - CC0 1.0
Andriessen, Hendrik, 1892-1981
Image from Wikimedia Commons
Reid, Edmund, 1846-1917
Image from Wikimedia Commons
unknown - Public Domain
Duke, R. T. W. (Richard Thomas Walker), 1822-1898
Image from Wikimedia Commons
Idont - CC BY-SA 4.0
Jacobovici, Simcha.
Image from Wikimedia Commons
Brumurph - CC BY-SA 4.0
Bouwsma, O. K.
Image from Wikimedia Commons
unknown -
Webb, Aileen Osborn, 1892-1979
Image from Wikimedia Commons
Springfield, Rick, 1949-
Image from Wikimedia Commons
Ruth ellen kocher - Public Domain
Kocher, Ruth Ellen, 1965-