Image from Wikimedia Commons
Tom Marcello - CC BY-SA 2.0
anonymous - Public Domain
Mathew Brady Levin Corot Handy - Public Domain
Martin Bernigeroth - Public Domain
unknown - Public Domain
U.S. Navy photo by John F. Williams - Public Domain
E. White, N.Y. - Public Domain
NBC Radio - Public Domain
Theron Clark Crawford - Public Domain
David Shankbone - CC BY-SA 3.0
Unknown deriative work by JPS68 - Public Domain
Public Domain
Photographer unidentified - Public Domain
Carol Bird - Public Domain
Image from Wikimedia Commons
Foucher, Paul, 1810-1875
Image from Wikimedia Commons
Tom Marcello - CC BY-SA 2.0
Tiberi, Frank
Image from Wikimedia Commons
anonymous - Public Domain
Ives, L. Silliman (Levi Silliman), 1797-1867
Image from Wikimedia Commons
Mathew Brady Levin Corot Handy - Public Domain
Coke, Richard, 1829-1897
Image from Wikimedia Commons
Stirling, James, 1791-1865
Image from Wikimedia Commons
Martin Bernigeroth - Public Domain
Schamberger, Caspar, 1623-1706
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Henderson, Thomas Jefferson, 1824-1911
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Widnall, William B. (William Beck), 1906-1983
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Smith, Willie, 1897-1973
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Wellman, Walter, 1858-1934
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Lefèbvre, Henri, 1901-1991
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Pollock, Charles Edward, 1823-1897
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unknown - Public Domain
Ricordi, Giovanni, -1853
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Lindsay, Ronald Charles, Sir, 1877-1945.
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Brookfield, Charles H.E. (Charles Hallam Elton), 1857-1913
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U.S. Navy photo by John F. Williams - Public Domain
Karle, Jerome
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E. White, N.Y. - Public Domain
Bowers, Robert Hood, 1877-1941
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NBC Radio - Public Domain
Goff, Norris, 1906-1978
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Macdonnell, Richard Graves, 1814-1881
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Cos-Gayón, Fernando, 1825-1898
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Theron Clark Crawford - Public Domain
Blaine, Walker, -1890
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Hinchliffe, John, 1731-1794
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David Shankbone - CC BY-SA 3.0
Ricci, Christina
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Unknown deriative work by JPS68 - Public Domain
Vital, du Four, Cardinal, approximately 1260-1327
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Dagron, Prudent René Patrice, 1819-1900
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Public Domain
Atkinson, William Walker, 1862-1932
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Tredgold, Thomas, 1788-1829
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Harvey, Herk, 1924-1996
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Photographer unidentified - Public Domain
Hays, Will S.
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Carol Bird - Public Domain
Lamont, Corliss, 1902-1995