Image from Wikimedia Commons
Government work in public domain, photographer unknown - Public Domain
Wikinade - CC BY-SA 3.0
Rob Mieremet / Anefo -
unknown - Public Domain
Georges Biard - CC BY-SA 3.0
Lewis Historical Publishing Co. - Public Domain
Dariusz.Biegacz -
T. O'Connor Sloan - Public Domain
unknown, but as a portrait of a man who died in 1817, it's same to assume PD. - Public Domain
:de:Hermann Scherenberg - Public Domain
unknown photographer - Public Domain
Kathy Riordan -
Image from Wikimedia Commons
Government work in public domain, photographer unknown - Public Domain
Lubin, Isador, 1896-1978
Image from Wikimedia Commons
Wikinade - CC BY-SA 3.0
Preljocaj, Angelin
Image from Wikimedia Commons
Rob Mieremet / Anefo -
Manuela
Image from Wikimedia Commons
unknown - Public Domain
Gergonne, Joseph-Diez, 1771-1859
Image from Wikimedia Commons
Georges Biard - CC BY-SA 3.0
Migenes-Johnson, Julia
Image from Wikimedia Commons
Lewis Historical Publishing Co. - Public Domain
Gary, James Albert, 1833-1920
Image from Wikimedia Commons
Dariusz.Biegacz -
Zamfir, Gheorghe, 1941-
Image from Wikimedia Commons
Fernández de Portocarrero, Luís Manuel, -1709
Image from Wikimedia Commons
Gifford, Walter S. (Walter Sherman), 1885-1966
Image from Wikimedia Commons
Wedel, Georg Wolffgang, 1645-1721
Image from Wikimedia Commons
González, Manuel 1833-1893
Image from Wikimedia Commons
T. O'Connor Sloan - Public Domain
Pictet, Raoul, 1846-1929
Image from Wikimedia Commons
Ingalls, David S. (David Sinton), 1899-1985
Image from Wikimedia Commons
Ziegfeld, Patricia, 1916-2008
Image from Wikimedia Commons
unknown - Public Domain
Buchanan, Claudius, 1766-1815
Image from Wikimedia Commons
unknown, but as a portrait of a man who died in 1817, it's same to assume PD. - Public Domain
Wheelock, John, 1754-1817
Image from Wikimedia Commons
unknown - Public Domain
Swain, Joseph, 1857-1927
Image from Wikimedia Commons
unknown - Public Domain
Chapman, T. A. (Thomas Algernon), 1842-1921
Image from Wikimedia Commons
:de:Hermann Scherenberg - Public Domain
Dohm, Ernst, 1819-1883
Image from Wikimedia Commons
Herling-Grudziński, Gustaw, 1919-2000
Image from Wikimedia Commons
Moore, Phil, 1918-1987
Image from Wikimedia Commons
White, J. Campbell (John Campbell), 1870-
Image from Wikimedia Commons
unknown photographer - Public Domain
Kalbeck, Max, 1850-1921
Image from Wikimedia Commons
Wilson, Robert, 1941-....
Image from Wikimedia Commons
Gaines, John W. (John Wesley), 1860-1926
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Tiedjens, Victor Alphons, 1895-1975
Image from Wikimedia Commons
unknown - Public Domain
Parks, Floyd Lavinius, 1896-1959
Image from Wikimedia Commons
Green, John Richard, 1837-1883
Image from Wikimedia Commons
Crittenden, George Bibb, 1812-1880
Image from Wikimedia Commons
Kathy Riordan -
Matthews, Robert J.