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Not stated - Public Domain
Rob Bogaerts / Anefo - CC BY-SA 3.0
US House of Representatives - Public Domain
Frederick Hollyer - Public Domain
Rodolphe Piguet d'après Alexandre d'Albert-Durade - Public Domain
Greg Hernandez - CC BY 2.0
Henry Donovan - Public Domain
unknown photographer - Public Domain
Public Domain
Bain News Service - Public Domain
Self-portrait - CC BY-SA 3.0
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Ahidjo, Ahmadou, 1924-1989
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Nadeau, Maurice
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Not stated - Public Domain
Kerby, William J. (William Joseph), 1870-1936
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Rob Bogaerts / Anefo - CC BY-SA 3.0
Jong, Jacqueline de
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Holman, Libby
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Manly, Charles, 1795-1871
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Alexander, Leo, 1905-
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US House of Representatives - Public Domain
Bolling, Richard, 1916-1991
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Clarke, Thomas James, 1858-1916
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Rozanov, V. V. (Vasiliĭ Vasilʹevich), 1856-1919
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Gaal, Franciska, 1904-1972
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Alfaro, Ricardo J. (Ricardo Joaquín), 1882-1971
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Butler, Elizabeth, Lady, 1846-1933
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Frederick Hollyer - Public Domain
Hutton, Richard Holt, 1826-1897
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Rodolphe Piguet d'après Alexandre d'Albert-Durade - Public Domain
Soret, Frédéric Jacob, 1795-1865
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Greg Hernandez - CC BY 2.0
Polo, Teri, 1969-
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Platt, Jonas, 1769-1834
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Henry Donovan - Public Domain
Kraus, Adolf, 1850-1928
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Clark, A. P. (Albert Patton), 1913-2010
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unknown photographer - Public Domain
Carroll, Harry
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Public Domain
Morrow, Jay J. (Jay Johnson), 1870-1937
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Ondříček, František, 1857-1922
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Public Domain
Curtis, Benjamin Robbins, 1809-1874
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Breslau, Louise, 1856-1927
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Ludwig, Otto, 1813-1865
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Kramer, Stanley
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Bain News Service - Public Domain
Gibbs, George, 1870-1942
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Self-portrait - CC BY-SA 3.0
Kohn, Alfie.
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Cooke, Morris Llewellyn, 1872-1960
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Eusebius, of Caesarea, Bishop of Caesarea, approximately 260-approximately 340