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NASA/Johnson Space Center - Public Domain
Gustav Schmege - CC BY 2.0
unknown - Public Domain
USSR Post - Public Domain
Hugo Boettinger (1880-1934) - Public Domain
Joseph Kriehuber Foto: :de:Peter Geymayer - Public Domain
Nadar - Public Domain
Gage Skidmore - CC BY-SA 3.0
Photo: Unknown Crop and cleanup: Hal Jespersen - Public Domain
David Underdown - CC BY-SA 3.0
Harry Kelly - Public Domain
Tom hatte - Public Domain
unknown photographer - Public Domain
w:John Kay (caricaturist) - Public Domain
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Astor, John Jacob, 1864-1912
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NASA/Johnson Space Center - Public Domain
Gemini 2 (Spacecraft)
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Gustav Schmege - CC BY 2.0
Okeefe, Eric
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Diterikhs, M. K. (Mikhail Konstantinovich)
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unknown - Public Domain
Gilbert, A. C. (Alfred Carlton), 1884-1961
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Hall, Carl Christian 1812-1888
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USSR Post - Public Domain
Pollitt, Harry
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Kirchbach, Wolfgang
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Hugo Boettinger (1880-1934) - Public Domain
Talich, Václav, 1883-1961
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Joseph Kriehuber Foto: :de:Peter Geymayer - Public Domain
Frezzolini, Erminia, 1818-1884
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Nadar - Public Domain
Préault, Auguste (1809-1879).
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Gage Skidmore - CC BY-SA 3.0
Nichols, Nichelle, 1932-2022
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Photo: Unknown Crop and cleanup: Hal Jespersen - Public Domain
Parker, Ely Samuel, 1828-1895
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David Underdown - CC BY-SA 3.0
Cecil, Arthur, 1843-1896
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Harry Kelly - Public Domain
Kelly, Harry, 1871-1953
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Beristáin de Souza, José Mariano, 1756-1817
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Jansenius, Cornelius, 1585-1638
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Boulanger, Ernest, 1815-1900
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Hill, Rowland Hill, Viscount, 1772-1842
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Fludd, Robert, 1574-1637
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Hastings, Milo, 1884-1957
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Tom hatte - Public Domain
Arnold, Malcolm
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Segal, George
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unknown photographer - Public Domain
Franklin, Sidney A., 1893-1972
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Rischbieth, Bessie Mabel, 1874-1967
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Masséna, André, prince d'Essling, 1758-1817
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w:John Kay (caricaturist) - Public Domain
Blair, Hugh, 1718-1800
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Valle y Caviedes, Juan del 1645-1698
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Carlos, Prince of Viana, 1421-1461
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Giraud, Henri, 1879-1949