Image from Wikimedia Commons
Stefi~commonswiki - Public Domain
Boston Globe - Public Domain
G103317 - CC BY-SA 3.0
Tom Marcello - CC BY-SA 2.0
:fr:Markus3 - CC BY-SA 3.0
Arnold Houbraken - Public Domain
Ansiaume (1729—1786) - Public Domain
Katmorro - CC BY-SA 3.0
unknown - Public Domain
Tord Kopland Eid - Public Domain
James Moloney - CC BY-SA 2.5
Daniel Shen - CC BY-SA 2.0
:de:Benjamin Rawlinson Faulkner - Public Domain
A. Legrand - Public Domain
Image from Wikimedia Commons
Andor, László.
Image from Wikimedia Commons
Gielgud, John, 1904-2000
Image from Wikimedia Commons
Stefi~commonswiki - Public Domain
Mościcki, Ignacy, 1867-1946
Image from Wikimedia Commons
González, Manuel 1833-1893
Image from Wikimedia Commons
Green, Richard R., 1936-1989
Image from Wikimedia Commons
Bradbury, William B.
Image from Wikimedia Commons
Boston Globe - Public Domain
Drum, Hugh Aloysius, 1879-1951
Image from Wikimedia Commons
Brian, Donald
Image from Wikimedia Commons
G103317 - CC BY-SA 3.0
Hirsch, Max, 1853-1909
Image from Wikimedia Commons
Tom Marcello - CC BY-SA 2.0
Peterson, Marvin Hannibal
Image from Wikimedia Commons
Varnhagen, Rahel, 1771-1833
Image from Wikimedia Commons
:fr:Markus3 - CC BY-SA 3.0
Rydell, Mark, 1934-....
Image from Wikimedia Commons
Arnold Houbraken - Public Domain
Everdingen, Allart van 1621-1675
Image from Wikimedia Commons
Oz, Ḳobi
Image from Wikimedia Commons
Ansiaume (1729—1786) - Public Domain
Messier, Charles
Image from Wikimedia Commons
Kriehuber, Josef, 1800-1876
Image from Wikimedia Commons
Katmorro - CC BY-SA 3.0
Bingham-Hall, Patrick.
Image from Wikimedia Commons
unknown - Public Domain
Sessions, Kate Olivia, 1857-1940
Image from Wikimedia Commons
Descartes, René, 1596-1650
Image from Wikimedia Commons
Newton, George, 1602-1681
Image from Wikimedia Commons
Higgins, Andrew Jackson, 1886-1952
Image from Wikimedia Commons
Coggeshall, William Turner, 1824-1867
Image from Wikimedia Commons
Tord Kopland Eid - Public Domain
Hoff, Trygve J.B.
Image from Wikimedia Commons
Stewart, James Haldane, 1776-1854
Image from Wikimedia Commons
James Moloney - CC BY-SA 2.5
Moloney, James, 1954-
Image from Wikimedia Commons
Franklin, Miles, 1879-1954
Image from Wikimedia Commons
Daniel Shen - CC BY-SA 2.0
Hicks, John, 1941-2006
Image from Wikimedia Commons
Agucchi, Giovanni Battista, 1570-1632
Image from Wikimedia Commons
:de:Benjamin Rawlinson Faulkner - Public Domain
Children, J. G. (John George), 1777-1852
Image from Wikimedia Commons
A. Legrand - Public Domain
Devergie, Alph. (Alphonse), 1798-1879