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Gobierno de Guatemala - Public Domain
No photographer credited - Public Domain
P. (Paul) Spies (Fotograaf/photographer). -
unknown photographer -
Colmer, Montagu, and Charles Erskine Scott Wood - Public Domain
Marianne McDonald - CC BY-SA 4.0
user at project - CC BY-SA 2.5
unknown - Public Domain
CBS Television - Public Domain
Carl Van Vechten (1880-1964) - Public Domain
Mathew Brady Levin Corot Handy - Public Domain
author - Public Domain
Public Domain
Jaarbuers - Public Domain
Dan Harasymchuk - CC BY-SA 4.0
Lincoln Ellsworth - Public Domain
Arthur S. Goss - Public Domain
Sylvia Mangold -
*:File:Victor_Basch_1926.jpg - Public Domain
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Gobierno de Guatemala - Public Domain
Ubico, Jorge, 1878-1946
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No photographer credited - Public Domain
Willis, Frances Elizabeth, 1899-1983
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P. (Paul) Spies (Fotograaf/photographer). -
Spies, Walter
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unknown photographer -
Boonzaier, D. C. (Daniel Cornelis), 1865-1950
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Colmer, Montagu, and Charles Erskine Scott Wood - Public Domain
Wood, Charles Erskine Scott, 1852-1944
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Marianne McDonald - CC BY-SA 4.0
Mcdonald, Marianne
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Clements, Vassar
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Goodford, Charles Old, 1812-1884
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user at project - CC BY-SA 2.5
Penzias, Arno A.
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Bovet, Guy
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Arrhenius, Svante, 1859-1927
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unknown - Public Domain
Stowe, Emily Howard, 1831-1903
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CBS Television - Public Domain
McNair, Barbara, 1934-2007
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Carl Van Vechten (1880-1964) - Public Domain
Windham, Donald
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Hodges, George Lloyd, ca1792-1862
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Mathew Brady Levin Corot Handy - Public Domain
Mahone, William, 1826-1895
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Leopold, Aldo, 1886-1948
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McDougall, William, 1871-1938
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author - Public Domain
Barton, Seth Maxwell, 1829-1900
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Craddock, Ida C.
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Mirbeau, Octave, 1848-1917
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Springer, Cornelis, 1817-1891
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Public Domain
Huggins, Charles, 1901-1997
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Jaarbuers - Public Domain
Trachtenberg, Stephen Joel
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unknown - Public Domain
Piatigorsky, Gregor, 1903-1976
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Dan Harasymchuk - CC BY-SA 4.0
Stratton, Allan
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Lincoln Ellsworth - Public Domain
Polar Star (Airplane)
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Arthur S. Goss - Public Domain
Fairley, Barker, 1887-1986
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Sylvia Mangold -
Mangold, Robert, 1937-....
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*:File:Victor_Basch_1926.jpg - Public Domain
Basch, Victor, 1863-1944