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ABC Television - Public Domain
PSI staff - Public Domain
US Army photographers on behalf of the OUSCCPAC or its successor organisation, the OCCW - Public Domain
Mboix - CC BY-SA 4.0
Public Domain
Ezequiel Plaza - Public Domain
Florida Memory - Public Domain
Le Matin -
unknown - Public Domain
Ray V. Pierce - Public Domain
Office of the Juvenile Instructor - Public Domain
Ruralhistorian - CC BY-SA 3.0
APS - CC0 1.0
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ABC Television - Public Domain
Miles, Joanna, 1940-
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Francis, Alec B., 1867-1934
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Humphrey, Lyman Underwood, 1844-1915
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Young, Hugh H., 1870-1945
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Foxx, Virginia, 1943-
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Russell, Charles M. (Charles Marion), 1864-1926
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PSI staff - Public Domain
Nenni, Pietro, 1891-1980
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US Army photographers on behalf of the OUSCCPAC or its successor organisation, the OCCW - Public Domain
Schumacher, Kurt, 1895-1952
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Beale, Calvin L. (Calvin Lunsford), 1923-2008
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Struve, F. G. W. (Friedrich Georg Wilhelm), 1793-1864
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Mboix - CC BY-SA 4.0
Pollock, Griselda
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Keith, James Francis Edward, 1696-1758
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Bowie, Thomas F. (Thomas Fielder), 1808-1869
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Public Domain
Waldman, Louis, 1892-
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Ezequiel Plaza - Public Domain
Alvarez Sotomayor, Fernando
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Baily, Edward Hodges, 1788-1867
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Barry, John, 1933-2011
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Cullen, William, 1826-1914
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Florida Memory - Public Domain
Carr, Marjorie Harris
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Cartagena, Alonso de, 1385?-1456
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Le Matin -
Seaman, Dick, 1913-1939
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unknown - Public Domain
Van Mildert, William, 1765-1836
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Ray V. Pierce - Public Domain
Pierce, R. V. (Ray Vaughn), 1840-1914
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unknown - Public Domain
Clarke, Frank Wigglesworth, 1847-1931
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Office of the Juvenile Instructor - Public Domain
Young, Seymour B. (Seymour Bicknell), 1837-1924
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Moret, Henry, 1856-1913
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Jaurés, Jean, 1859-1914
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unknown - Public Domain
Pedersen, Holger, 1867-1953
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Ruralhistorian - CC BY-SA 3.0
Tilghman, Oswald, 1841-1932
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APS - CC0 1.0
Gibson, Eleanor Jack