Image from Wikimedia Commons
unknown - Public Domain
:en:Benson Lossing - Public Domain
Sry85 - CC BY 3.0
Eugène Pirou - Public Domain
George Romney - Public Domain
Godefroy Engelmann - Public Domain
Matthew Blair - CC0 1.0
Georges Biard - CC BY-SA 3.0
Portrait by C. Oesterley, lithography by G. Honig -
Public Domain
Churchman Company - Public Domain
Jchab85 - CC BY-SA 3.0
Brachialromantiker - CC BY-SA 3.0
Patriciavaro - CC BY-SA 4.0
Samuel Dreher Matlack - Public Domain
San Diego Air & Space Museum Archives - Public Domain
NOAA - Public Domain
David Shankbone - CC BY 3.0
Image from Wikimedia Commons
unknown - Public Domain
Burton, W. K. (William Kinnimond)
Image from Wikimedia Commons
:en:Benson Lossing - Public Domain
Fanning, Edmund, 1739-1818
Image from Wikimedia Commons
unknown - Public Domain
Falconer, Lanoe, 1848-1908
Image from Wikimedia Commons
Sry85 - CC BY 3.0
Chen, Kexin, 1962-
Image from Wikimedia Commons
Eugène Pirou - Public Domain
Baudrillart, Henri Joseph Léon, 1821-1892
Image from Wikimedia Commons
George Romney - Public Domain
Law, Edmund, 1703-1787
Image from Wikimedia Commons
Godefroy Engelmann - Public Domain
Czerny, Carl, 1791-1857
Image from Wikimedia Commons
Matthew Blair - CC0 1.0
Winslow, Octavius, -1878
Image from Wikimedia Commons
Catherine, Philippe
Image from Wikimedia Commons
Georges Biard - CC BY-SA 3.0
Ardant, Fanny
Image from Wikimedia Commons
Portrait by C. Oesterley, lithography by G. Honig -
Wagner, Rudolph, 1805-1864
Image from Wikimedia Commons
Komunyakaa, Yusef
Image from Wikimedia Commons
Hodgson, B. H. (Brian Houghton), 1800-1894
Image from Wikimedia Commons
Simrock, Friedrich August, 1837-1901
Image from Wikimedia Commons
Public Domain
Worden, John Lorimer, 1818-1897
Image from Wikimedia Commons
Hutchinson, Fred, 1919-1964
Image from Wikimedia Commons
Churchman Company - Public Domain
McLaren, William Edward, 1831-1905
Image from Wikimedia Commons
Jchab85 - CC BY-SA 3.0
Corsten, Ferry
Image from Wikimedia Commons
Buckley, Christopher Augustine, 1845-1922
Image from Wikimedia Commons
Brachialromantiker - CC BY-SA 3.0
Woermann, Karl, 1844-1933
Image from Wikimedia Commons
Patriciavaro - CC BY-SA 4.0
Hill, Gary, 1951-....
Image from Wikimedia Commons
Jones, Gordon, 1912-1963
Image from Wikimedia Commons
Samuel Dreher Matlack - Public Domain
Gibson, John Bannister, 1780-1853
Image from Wikimedia Commons
Macdonald, James Ramsay, 1866-1937
Image from Wikimedia Commons
Imboden, John D. (John Daniel), 1823-1895
Image from Wikimedia Commons
Sanderson, Robert, 1587-1663
Image from Wikimedia Commons
San Diego Air & Space Museum Archives - Public Domain
Hubbard, Bernard R. (Bernard Rosecrans), 1888-1962
Image from Wikimedia Commons
Dale, Alan, 1926-2002
Image from Wikimedia Commons
NOAA - Public Domain
Bond, George F. (George Foote), 1915-1983
Image from Wikimedia Commons
David Shankbone - CC BY 3.0
White, Edmund, 1940-....