Image from Wikimedia Commons
Archive.org - Public Domain
Nadar Upload and restoration by Jebulon - Public Domain
Gathmann, Jens -
David Shankbone - CC BY-SA 3.0
unknown - CC BY 3.0
Moremi99 - CC BY-SA 4.0
Mathew Brady - Public Domain
unknown - Public Domain
Peter A. Juley & Son -
No photographer credited. - Public Domain
Thomas Gainsborough - Public Domain
Hans Peters (ANEFO) - CC0 1.0
Public Domain
Annemarie Heinrich - Public Domain
(William) Walker Hodgson - Public Domain
Image from Wikimedia Commons
Kiszczak, Czesław
Image from Wikimedia Commons
Archive.org - Public Domain
Terry, Sheila
Image from Wikimedia Commons
Korsmo, Charlie, 1978-
Image from Wikimedia Commons
Ward, Nancy, -1822
Image from Wikimedia Commons
Nadar Upload and restoration by Jebulon - Public Domain
Nélaton, Auguste, 1807-1873
Image from Wikimedia Commons
Baumann, E. (Eugen), 1846-1896
Image from Wikimedia Commons
Mills, Ogden Livingston, 1884-
Image from Wikimedia Commons
Gathmann, Jens -
Couve de Murville, Maurice, 1907-1999
Image from Wikimedia Commons
Goggin, William Leftwich, 1807-1870
Image from Wikimedia Commons
Sherman, Hiram, 1908-1989
Image from Wikimedia Commons
Sedaris, David
Image from Wikimedia Commons
David Shankbone - CC BY-SA 3.0
Fraser, Brendan, 1968-....
Image from Wikimedia Commons
unknown - CC BY 3.0
Regener, Erich, 1881-1955
Image from Wikimedia Commons
Miller, Dick, 1928-...
Image from Wikimedia Commons
Moremi99 - CC BY-SA 4.0
Swerling, Lisa.
Image from Wikimedia Commons
Mathew Brady - Public Domain
Morse, Samuel Finley Breese, 1791-1872
Image from Wikimedia Commons
unknown - Public Domain
Graves, Frank Pierrepont, 1869-1956
Image from Wikimedia Commons
Ali, Laila
Image from Wikimedia Commons
Beach, Michael
Image from Wikimedia Commons
Harboe, Ludvig, 1709-1783
Image from Wikimedia Commons
Peter A. Juley & Son -
Burke, Selma, 1900-1995
Image from Wikimedia Commons
No photographer credited. - Public Domain
Beasley, Delilah L. (Delilah Leontium), 1871-1934
Image from Wikimedia Commons
Thomas Gainsborough - Public Domain
Dudley, H. Bate (Henry Bate), Sir, 1745-1824
Image from Wikimedia Commons
Hans Peters (ANEFO) - CC0 1.0
Balkt, H. H. ter, 1938-....
Image from Wikimedia Commons
Public Domain
Hughes, Harold E. (Harold Everett), 1922-1996
Image from Wikimedia Commons
unknown - Public Domain
Orr, John Boyd, Baron Boyd-Orr, 1880-1971
Image from Wikimedia Commons
Annemarie Heinrich - Public Domain
Sosa, Mercedes
Image from Wikimedia Commons
Hurlock, Madeline, 1899-1989
Image from Wikimedia Commons
(William) Walker Hodgson - Public Domain
Eddis, Eden Upton, 1812-1901
Image from Wikimedia Commons
Pigalle, Jean-Baptiste, 1714-1785