Image from Wikimedia Commons
unknown - CC BY 2.5
unknown photographer 1914 - Public Domain
George Grantham Bain Collection (Library of Congress) - Public Domain
Contemporary portrait - Public Domain
Unattributed - Public Domain
unknown - Public Domain
Macfadden Publications -
Olof Krans - Public Domain
Official photo - Public Domain
Konrad Jacobs, Erlangen - CC BY-SA 2.0
Zarateman - CC0 1.0
CIRMAR - CC BY-SA 3.0
Antarctic96 - CC BY-SA 3.0
#N10467 - Public Domain
Brazilian Government: 1945 - Public Domain
Image from Wikimedia Commons
Mengs, Anton Raphael, 1728-1779
Image from Wikimedia Commons
Wilcoxon, Henry, 1905-1984
Image from Wikimedia Commons
Manso, Juana Paula, 1819-1875
Image from Wikimedia Commons
unknown - CC BY 2.5
Moore, Harold E. (Harold Emery), 1917-1980
Image from Wikimedia Commons
unknown photographer 1914 - Public Domain
Kuhl, Hermann v., 1856-1958
Image from Wikimedia Commons
George Grantham Bain Collection (Library of Congress) - Public Domain
Grierson, James Moncrieff, 1859-1914
Image from Wikimedia Commons
Stäckel, Paul, 1862-1919
Image from Wikimedia Commons
Contemporary portrait - Public Domain
Channing, William Ellery, 1780-1842
Image from Wikimedia Commons
Unattributed - Public Domain
Folger, William Mayhew, 1844-1928
Image from Wikimedia Commons
unknown - Public Domain
Komitas, Vardapet, 1869-1935
Image from Wikimedia Commons
Bailey, David, 1938-....
Image from Wikimedia Commons
unknown - Public Domain
Henke, Heinrich Philipp Conrad
Image from Wikimedia Commons
Luckyj, George Stephen Nestor, 1919-2001
Image from Wikimedia Commons
Macfadden Publications -
Malone, Ted, 1908-1989
Image from Wikimedia Commons
Olof Krans - Public Domain
Krans, Olof, 1838-1916
Image from Wikimedia Commons
Fiéschi, Gian Luigi, conte di Lavagna, 1522-1547
Image from Wikimedia Commons
Official photo - Public Domain
Butz, Earl L. (Earl Lauer), 1909-2008
Image from Wikimedia Commons
Max, Gabriel Cornelius von, 1840-1915
Image from Wikimedia Commons
Konrad Jacobs, Erlangen - CC BY-SA 2.0
Zassenhaus, Hans
Image from Wikimedia Commons
Zarateman - CC0 1.0
Berlanga, Luis García
Image from Wikimedia Commons
Ernst, Max, 1891-1976
Image from Wikimedia Commons
Emery, David F., 1948-
Image from Wikimedia Commons
CIRMAR - CC BY-SA 3.0
Shaw, Mary, 1814-1876
Image from Wikimedia Commons
McCracken, Paul W. (Paul Winston), 1915-2012
Image from Wikimedia Commons
Antarctic96 - CC BY-SA 3.0
Hershey Foods Corporation
Image from Wikimedia Commons
Ezzelino III. da Romano 1194-1259
Image from Wikimedia Commons
#N10467 - Public Domain
Colebourn, Harry, 1887-1947
Image from Wikimedia Commons
Brazilian Government: 1945 - Public Domain
Odnoposoff, Adolfo, 1917-1992
Image from Wikimedia Commons
Slaughter, Gabriel, 1767-1830
Image from Wikimedia Commons
Taft, Alphonso, 1810-1891