Image from Wikimedia Commons
unknown - Public Domain
Rathfelder - CC BY-SA 4.0
Bain News Service, publisher - Public Domain
New-york Tribune - Public Domain
published by L C Page and company Boston 1903 - Public Domain
Sasha Kopf - CC BY-SA 4.0
National Photo Company - Public Domain
Public Domain
John Singer Sargent - Public Domain
Collection of the U.S. House of Representatives, Photography Collection - Public Domain
http://www.aworan.com - CC BY 2.0
George Iles - Public Domain
Marijke de Goey - CC BY 3.0
author - Public Domain
Edharary - CC BY-SA 4.0
Compilation - Public Domain
Image from Wikimedia Commons
unknown - Public Domain
Lincoln, Sarah Bush Johnston, 1788-1869
Image from Wikimedia Commons
Rathfelder - CC BY-SA 4.0
Morris, J. N. (Jeremy Noah)
Image from Wikimedia Commons
unknown - Public Domain
Chatterton, Fenimore, 1860-1958
Image from Wikimedia Commons
Bain News Service, publisher - Public Domain
Stokes, Rose Pastor, 1879-1933
Image from Wikimedia Commons
New-york Tribune - Public Domain
Murray, J. Harold
Image from Wikimedia Commons
published by L C Page and company Boston 1903 - Public Domain
Cable, George Washington, 1844-1925
Image from Wikimedia Commons
Sasha Kopf - CC BY-SA 4.0
Kopf, Silas, 1949-...
Image from Wikimedia Commons
National Photo Company - Public Domain
Ackerman, Ernest Robinson, 1863-1931
Image from Wikimedia Commons
Public Domain
Mercer, Hugh W. (Hugh Weedon), 1808-1877
Image from Wikimedia Commons
Tschechowa, Olga, 1896-1980
Image from Wikimedia Commons
Conlan, Jocko, 1899-
Image from Wikimedia Commons
McPherson, James M.
Image from Wikimedia Commons
John Singer Sargent - Public Domain
Vanderbilt, George Washington, 1862-1914
Image from Wikimedia Commons
Collection of the U.S. House of Representatives, Photography Collection - Public Domain
Butler, M. Caldwell (Manley Caldwell), 1925-
Image from Wikimedia Commons
Young, Allyn Abbott, 1876-1929
Image from Wikimedia Commons
Public Domain
Radisson, Pierre Esprit, approximately 1636-1710
Image from Wikimedia Commons
Chapman, Maria Weston, 1806-1885
Image from Wikimedia Commons
Kosleck, Martin, 1904-1994
Image from Wikimedia Commons
http://www.aworan.com - CC BY 2.0
Alexander, Monty
Image from Wikimedia Commons
George Iles - Public Domain
Blanchard, Thomas, 1788-1864
Image from Wikimedia Commons
Meredith, James Howard, 1933-
Image from Wikimedia Commons
Marijke de Goey - CC BY 3.0
Goey, Marijke de 1947-
Image from Wikimedia Commons
author - Public Domain
McCormick, Edith Rockefeller, 1872-1932
Image from Wikimedia Commons
Follett, William Webb, Sir, 1798-1845
Image from Wikimedia Commons
Karasz, Mariska, 1898-1960
Image from Wikimedia Commons
Bain News Service, publisher - Public Domain
Morris, Roland S. (Roland Sletor), 1874-1945
Image from Wikimedia Commons
Barraband, Jacques, 1767?-1809
Image from Wikimedia Commons
Edharary - CC BY-SA 4.0
Petlin, Irving, 1934-
Image from Wikimedia Commons
Wood, I. A. C. (Ian Alexander Christie), 1901-1992
Image from Wikimedia Commons
Compilation - Public Domain
Wiman, Erastus, 1834-1904