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*:File:Otto_Struve_US_post_1949.JPG - Public Domain
unknown - Public Domain
Charles Baugniet - Public Domain
Conrad Ruf (1840-1922) - Public Domain
Anonymous -
Théobald Chartran - Public Domain
Original uploader was :nl:Jan Arkesteijn - Public Domain
Paebi - CC BY-SA 3.0
LorraineHetu -
. - Public Domain
Georges Biard - CC BY-SA 3.0
"By permission of J. Steuart, Esq., W.S., from the Painting by De Nune, 1749." - Public Domain
Mathew Brady - Public Domain
original uploader - Public Domain
Horace van Ruith - CC BY-SA 4.0
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*:File:Otto_Struve_US_post_1949.JPG - Public Domain
Struve, Otto, 1897-1963
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Blackburn, Joseph C. S. (Joseph Clay Stiles), 1838-1918
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Hatchett, Joseph W., 1932-
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unknown - Public Domain
Wynkoop, Henry, 1737-1816
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Charles Baugniet - Public Domain
Devaux, Paul
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Pollastrini, Enrico 1817-1876
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Michel, Louise, 1830-1905
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Conrad Ruf (1840-1922) - Public Domain
Heyne, Moriz, 1837-1906
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Poyet, Guillaume, 1473-1548
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Anonymous -
Farquhar, J. N. (John Nicol), 1861-1929
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Théobald Chartran - Public Domain
Hyde, James H. (James Hazen), 1876-1959
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unknown - Public Domain
Verreaux, Jules, 1807-1873
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Alexander, Leo, 1905-
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Conrad, Kent, 1948-
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Biel, Gabriel, -1495
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Hermlin, Stephan
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Original uploader was :nl:Jan Arkesteijn - Public Domain
Stephenson, George, 1781-1848
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Leach, D. C. (DeWitt Clinton), 1822-1909
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Paebi - CC BY-SA 3.0
Boyd, Jim, 1956-
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LorraineHetu -
Hétu, Pierre, 1936-1998
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Condon, Thomas, 1822-1907
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. - Public Domain
Bowker, R. R. (Richard Rogers), 1848-1933
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Georges Biard - CC BY-SA 3.0
Marchand, Guy, 1937-....
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"By permission of J. Steuart, Esq., W.S., from the Painting by De Nune, 1749." - Public Domain
Ruddiman, Thomas, 1674-1757
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Archimedes
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Mathew Brady - Public Domain
Bagley, John Holroyd, 1832-1902
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original uploader - Public Domain
Karelitz, Avraham Yeshayahu, 1878-1953
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Horace van Ruith - CC BY-SA 4.0
Oneill, Norman
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Chamberlin, William Henry, 1897-1969
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Wilfley, Xenophon P. (Xenophon Pierce), 1871-1931