Image from Wikimedia Commons
Swedish National Heritage Board - Public Domain
George Richmond - Public Domain
Angelo Cairoli - Public Domain
United States District Court for the Middle District of Louisiana - Public Domain
unknown - Public Domain
Agence Rol - Public Domain
Engraving by Frederick Halpin - Public Domain
Copyright by Moffett, Chicago. J241772 U.S. Copyright Office. - Public Domain
AllyUnion - CC BY-SA 3.0
F Ceragioli - CC BY-SA 3.0
Gaetano Moroni - Public Domain
Carl Gutherz - Public Domain
United States Army - Public Domain
Partridge, American Photographer - Public Domain
:de:Dora Carrington - Public Domain
Public Domain
Snod311 - CC BY-SA 4.0
Image from Wikimedia Commons
Richardson, Hugh, 1905-2000
Image from Wikimedia Commons
Swedish National Heritage Board - Public Domain
Thomas, William Widgery, 1839-1927
Image from Wikimedia Commons
Thompson, James Walter, 1847-1928
Image from Wikimedia Commons
George Richmond - Public Domain
Cavendish, Lucy, Lady, 1841-1925
Image from Wikimedia Commons
Angelo Cairoli - Public Domain
Barzaghi, Francesco 1839-1892
Image from Wikimedia Commons
Beider, Alexander
Image from Wikimedia Commons
United States District Court for the Middle District of Louisiana - Public Domain
Brady, James J. (James Joseph), 1944-
Image from Wikimedia Commons
Hebel, Johann Peter, 1760-1826
Image from Wikimedia Commons
Gwynne, H. A. (Howell Arthur), 1865-1950
Image from Wikimedia Commons
unknown - Public Domain
Tschiffely, A.F. (Aimé Felix), 1895-1954
Image from Wikimedia Commons
Barber, Eunice
Image from Wikimedia Commons
Agence Rol - Public Domain
Sayre, Jessie Woodrow Wilson, 1887-1933
Image from Wikimedia Commons
Engraving by Frederick Halpin - Public Domain
Freneau, Philip Morin, 1752-1832
Image from Wikimedia Commons
Copyright by Moffett, Chicago. J241772 U.S. Copyright Office. - Public Domain
Harding, Warren Gamaliel, 1865-1923
Image from Wikimedia Commons
unknown - Public Domain
Sharp, Evelyn, 1869-1955
Image from Wikimedia Commons
AllyUnion - CC BY-SA 3.0
Pohl, Frederik
Image from Wikimedia Commons
F Ceragioli - CC BY-SA 3.0
Galliari, Bernardino, 1707-1794
Image from Wikimedia Commons
Gaetano Moroni - Public Domain
Frédol, Bérenger, -1323
Image from Wikimedia Commons
unknown - Public Domain
Gossett, Elizabeth Hughes, 1907-1981
Image from Wikimedia Commons
Carl Gutherz - Public Domain
Marshall, William Rainey, 1825-1896
Image from Wikimedia Commons
McGee, Barry, 1966-
Image from Wikimedia Commons
United States Army - Public Domain
Gruber, Edmund L., 1879-1941
Image from Wikimedia Commons
Partridge, American Photographer - Public Domain
Perkins, Frederic B. (Frederic Beecher), 1828-1899
Image from Wikimedia Commons
:de:Dora Carrington - Public Domain
Strachey, Julia Frances, 1901-1979
Image from Wikimedia Commons
Akkeringa, Johannes Evert Hendrik, 1861-1942
Image from Wikimedia Commons
Public Domain
Lasalle, Antoine-Charles-Louis de, 1775-1809
Image from Wikimedia Commons
Gassendi, Pierre, 1592-1655
Image from Wikimedia Commons
unknown - Public Domain
Harvey, John, 1778-1852
Image from Wikimedia Commons
Public Domain
Gilbert, Abijah, 1806-1881
Image from Wikimedia Commons
Snod311 - CC BY-SA 4.0
Braggiotti, Mario, 1905-1996