Image from Wikimedia Commons
Piermario Ciani, mailartist (deceased) - CC BY-SA 4.0
Jean Baptiste van Loo - Public Domain
Администрация Волгоградской области -
unknown - Public Domain
Georges Biard - CC BY-SA 3.0
Edward Scriven, after Francis Kyte (fl. 1710-1744) - Public Domain
Benton & Bowles, advertising agency for General Foods, the program sponsor. Photographer-Elite Studios, New York. - Public Domain
Thomas Kirk Photograph by Illustratedjc - CC BY-SA 4.0
w - Public Domain
Georgina Goodlander at https://www.flickr.com/people/31183835@N08 - CC BY-SA 2.0
Smithsonian Institution -
Mathew Brady Levin Corot Handy - Public Domain
Adrien Victor Joseph Gerlache de Gomery - Public Domain
Image from Wikimedia Commons
Piermario Ciani, mailartist (deceased) - CC BY-SA 4.0
Baroni, Vittore
Image from Wikimedia Commons
Pieper, Franz, 1852-1931
Image from Wikimedia Commons
Jean Baptiste van Loo - Public Domain
Mansfield, William Murray, Earl of, 1705-1793
Image from Wikimedia Commons
Администрация Волгоградской области -
Shilov, Aleksandr, 1943-
Image from Wikimedia Commons
Thornton, Matthew, 1714-1803
Image from Wikimedia Commons
Baudin, Nicolas, 1754-1803
Image from Wikimedia Commons
Sharpe, Samuel, 1799-1881
Image from Wikimedia Commons
Marshall, William, 1749-1833
Image from Wikimedia Commons
Witt, Cornelis de 1623-1672
Image from Wikimedia Commons
Mackinnon, William Henry, Sir, 1852-1929
Image from Wikimedia Commons
unknown - Public Domain
Morse, Lee, -1954
Image from Wikimedia Commons
Georges Biard - CC BY-SA 3.0
Trier, Lars von 1956-
Image from Wikimedia Commons
Clifford, William Kingdon, 1845-1879
Image from Wikimedia Commons
Darwin Fox, William, 1805-1880
Image from Wikimedia Commons
Rinser, Luise, 1911-2002
Image from Wikimedia Commons
Edward Scriven, after Francis Kyte (fl. 1710-1744) - Public Domain
Cave, Edward, 1691-1754
Image from Wikimedia Commons
Benton & Bowles, advertising agency for General Foods, the program sponsor. Photographer-Elite Studios, New York. - Public Domain
Ross, Lanny, 1906-1988
Image from Wikimedia Commons
unknown - Public Domain
Elphinstone, Mountstuart, 1779-1859
Image from Wikimedia Commons
Thomas Kirk Photograph by Illustratedjc - CC BY-SA 4.0
Magee, William, 1766-1831
Image from Wikimedia Commons
w - Public Domain
Dillon, Sidney, 1812-1892
Image from Wikimedia Commons
Potter, T. R. (Thomas Rossell), 1799-1873
Image from Wikimedia Commons
Lea, Nicholas, 1962-....
Image from Wikimedia Commons
Boone, Walter F. (Walter Frederick), 1898-1995
Image from Wikimedia Commons
Georgina Goodlander at https://www.flickr.com/people/31183835@N08 - CC BY-SA 2.0
Schafer, Tim
Image from Wikimedia Commons
Heyward, Dorothy, 1890-1961
Image from Wikimedia Commons
Smithsonian Institution -
Gladstone, J. H. (John Hall), 1827-1902
Image from Wikimedia Commons
Mathew Brady Levin Corot Handy - Public Domain
White, Harry, 1834-1920
Image from Wikimedia Commons
Adrien Victor Joseph Gerlache de Gomery - Public Domain
Lecointe, Georges, 1869-1929
Image from Wikimedia Commons
Bottomley, Virginia
Image from Wikimedia Commons
Blaauw, Adriaan