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unknown - Public Domain
Ghitta Carell - Public Domain
anonymous -
Jan Vilímek - Public Domain
Mathew Brady - Public Domain
Pymouss44 - CC BY-SA 3.0
https://digitalcollections.nypl.org/items/7f591b21-5c9e-fa9a-e040-e00a18063d1c - Public Domain
Georges Biard - CC BY-SA 3.0
Th. Fink Veringen - CC BY-SA 4.0
original uploader - Public Domain
Svklimkin - CC BY-SA 4.0
Me, with my photocamera - Public Domain
National Magazine - Public Domain
Unattributed - Public Domain
"Cox" (no further information from source) - Public Domain
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White, Richard Grant, 1821-1885
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unknown - Public Domain
Roncalli, Ludovico, conte
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Lehrs, Max, 1855-1938
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Ghitta Carell - Public Domain
Michelucci, Giovanni, 1891-1990
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anonymous -
Smetáček, Václav, 1906-1986
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Bowlin, James B. (James Butler), 1804-1874
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Eickemeyer, Rudolf, 1862-1932
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Buckminster, J. S. (Joseph Stevens), 1784-1812
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Jan Vilímek - Public Domain
Léon, Victor, 1858-1940
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Bolté, Charles L. (Charles Lawrence), 1895-1989
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Mathew Brady - Public Domain
Crawford, Jr., Samuel Wylie, 1829-1892
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Young, Art, 1866-1943
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Pymouss44 - CC BY-SA 3.0
Queffélec, Anne, 1948-
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https://digitalcollections.nypl.org/items/7f591b21-5c9e-fa9a-e040-e00a18063d1c - Public Domain
Garnet, Sarah Smith Tompkins, 1831-1911.
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Georges Biard - CC BY-SA 3.0
Kinski, Klaus
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Th. Fink Veringen - CC BY-SA 4.0
Hermannus, Contractus, 1013-1054
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Hessen, Friedrich Karl von, 1868-1940
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Ephraem, Syrus, Saint, 303-373
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original uploader - Public Domain
Bartlett, John H. (John Henry), 1869-
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Behn, Aphra, 1640-1689
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Doddridge, Philip, 1702-1751
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Trailer, Rex, 1929-
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Kocher, Emil Theodor, 1841-1917
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Albaladejo, Pierre
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Stein, Fred, 1909-1967
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Svklimkin - CC BY-SA 4.0
Korzhakov, Aleksandr
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Me, with my photocamera - Public Domain
Milnes, Sherrill
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National Magazine - Public Domain
Clare, Ada
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Unattributed - Public Domain
Mignan, Édouard 1884-1969
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"Cox" (no further information from source) - Public Domain
McCutcheon, John T.