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Johann Heinrich Roos - Public Domain
Charles Vogt - Public Domain
Nadar Uploded and restored by Jebulon - CC0 1.0
Mingle MediaTV - CC BY-SA 2.0
Paulovflopes - CC BY-SA 4.0
Koroesu - Public Domain
Uncredited - Public Domain
Karl-Erik Olsson-Snogeröd - CC0 1.0
original uploader - CC BY-SA 2.5
unknown - Public Domain
Assenmacher - CC BY-SA 3.0
George Grantham Bain Collection (Library of Congress) - Public Domain
slowking -
Gage Skidmore - CC BY-SA 3.0
Steve Mynett - CC BY 2.0
Mosman Council - CC BY 2.0
NASA; cropped to show Preston Bassett only - Public Domain
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Johann Heinrich Roos - Public Domain
Roos, Johann Heinrich, 1631-1685
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Charles Vogt - Public Domain
Niedermeyer, Louis, 1802-1861
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Crothers, George Edward, 1870-1957
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Nadar Uploded and restored by Jebulon - CC0 1.0
Malot, Hector, 1830-1907
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Mingle MediaTV - CC BY-SA 2.0
Ross, Charlotte, 1968-
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Cust, Henry John Cockayne, 1861-1917
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Paulovflopes - CC BY-SA 4.0
Davis, Ernie, 1939-1963
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Koroesu - Public Domain
Neebe, Oscar W., 1850-
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Uncredited - Public Domain
Schlesinger, Frank, 1871-1943
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Karl-Erik Olsson-Snogeröd - CC0 1.0
Lewerentz, Sigurd, 1885-1975
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original uploader - CC BY-SA 2.5
Whitley, Keith
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Smith, Margaret Bayard, 1778-1844
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unknown - Public Domain
Bertkau, Philipp
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Assenmacher - CC BY-SA 3.0
Yun, Isang
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Dillwyn, L.W. (Lewis Weston), 1778-1855
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George Grantham Bain Collection (Library of Congress) - Public Domain
Markham, Clements R. (Clements Robert), Sir, 1830-1916
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Del Valle, Pedro A. (Pedro Augusto), 1893-1978
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Tissot, S. A. D. (Samuel Auguste David), 1728-1797
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Hicks, William, 1830-1883
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Brosset, Marie-Félicité (1802-1880).
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slowking -
Weigel, George, 1951-....
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unknown - Public Domain
Laboulaye, Édouard, 1811-1883
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Gage Skidmore - CC BY-SA 3.0
Kristol, William.
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Steve Mynett - CC BY 2.0
Person, Houston
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Bell, Lawrence Dale, 1894-1956
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unknown - Public Domain
Paoli, Cesare, 1840-1902
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Mosman Council - CC BY 2.0
Olsen, John, 1928-
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Metcalfe, Robert M., 1946-....
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Hoss, E. E. (Elijah Embree), 1849-1919
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NASA; cropped to show Preston Bassett only - Public Domain
Bassett, Preston R. (Preston Rogers), 1892-1992