Image from Wikimedia Commons
Josef Székely - Public Domain
Julian Vannerson (1827-), photographer. McClees and Beck (Washington, DC), publisher. - Public Domain
Public Domain
Unspecified - Public Domain
Taras Shevchenko - Public Domain
Unattributed - Public Domain
unknown - Public Domain
Jan Šplíchal - CC BY-SA 4.0
Charles Roscoe Savage - Public Domain
Unknown war photographer - Public Domain
George Grantham Bain Collection (Library of Congress) - Public Domain
David Shankbone -
American Manufacturer and Iron World, American Manufacturer and Iron World - Public Domain
Harry Pot:w:Anefo -
Image from Wikimedia Commons
Josef Székely - Public Domain
Schnitzler, Johann, 1835-1893
Image from Wikimedia Commons
Julian Vannerson (1827-), photographer. McClees and Beck (Washington, DC), publisher. - Public Domain
Chaffee, Calvin Clifford, 1811-1896
Image from Wikimedia Commons
Public Domain
Ruffini, Paolo, 1765-1822
Image from Wikimedia Commons
Unspecified - Public Domain
Vesnić, Milenko, 1863-1921
Image from Wikimedia Commons
Reibey, Thomas, 1821-1912
Image from Wikimedia Commons
Pombal, Sebastião José de Carvalho e Melo, Marqués de 1699-1782
Image from Wikimedia Commons
Taras Shevchenko - Public Domain
Shevchenko, Taras, 1814-1861
Image from Wikimedia Commons
Unattributed - Public Domain
De Lancey, Oliver, 1752-1822
Image from Wikimedia Commons
Public Domain
Davidson, John, 1887-1968
Image from Wikimedia Commons
Myers, Carmel, 1899-1980
Image from Wikimedia Commons
unknown - Public Domain
Ehrenberg, Herman, 1816-1866
Image from Wikimedia Commons
Hausdorff, Felix, 1868-1942
Image from Wikimedia Commons
Jan Šplíchal - CC BY-SA 4.0
Fischl, Viktor, 1912-2006
Image from Wikimedia Commons
Alexander, Joshua W. (Joshua Willis), 1852-1936
Image from Wikimedia Commons
Charles Roscoe Savage - Public Domain
Smith, David H. (David Hyrum), 1844-1904
Image from Wikimedia Commons
Hellmuth, Phil
Image from Wikimedia Commons
Berlage, Hendrik Petrus, 1856-1934
Image from Wikimedia Commons
Fairchild, Herman L. (Herman Le Roy), 1850-1943
Image from Wikimedia Commons
Unknown war photographer - Public Domain
Grow, Robert W., 1895-1985
Image from Wikimedia Commons
Chamoun, Camille, 1900-1987
Image from Wikimedia Commons
unknown - Public Domain
Stich-Randall, Teresa, 1927-2007
Image from Wikimedia Commons
George Grantham Bain Collection (Library of Congress) - Public Domain
Phillips, David Graham, 1867-1911
Image from Wikimedia Commons
David Shankbone -
Johnson, Joyce, 1935-....
Image from Wikimedia Commons
Norman, Donald A.
Image from Wikimedia Commons
Benning, James, 1942-....
Image from Wikimedia Commons
unknown - Public Domain
Reed, Verner Z. (Verner Zevola), 1863-1919
Image from Wikimedia Commons
Orton, James, 1830-1877
Image from Wikimedia Commons
American Manufacturer and Iron World, American Manufacturer and Iron World - Public Domain
Kier, Samuel M., 1813-1874
Image from Wikimedia Commons
Baring-Gould, S. (Sabine), 1834-1924
Image from Wikimedia Commons
Harry Pot:w:Anefo -
Moffo, Anna