Image from Wikimedia Commons
unknown - Public Domain
NFB - Public Domain
Mathew Brady Levin Corot Handy - Public Domain
Lexrepublica - CC BY-SA 4.0
Scan 2008 by S J Plunkett, drawing by George Cruikshank, engr by Roberts 1823 - Public Domain
US Government - Public Domain
Claude Mellan - Public Domain
Compilation - Public Domain
Hugo Mendelson - Public Domain
J. Gurney & Sons, fl. ca. 1850-1870 - Photographer - Public Domain
original uploader - Public Domain
Eric Koch / Anefo - CC0 1.0
Siegel, Arthur S. for U.S. Farm Security Administration - Office of War Information - Public Domain
Image from Wikimedia Commons
unknown - Public Domain
Wyatt, Wendell
Image from Wikimedia Commons
NFB - Public Domain
Smallwood, Joseph R., 1900-1991
Image from Wikimedia Commons
Peel, Robert, 1788-1850
Image from Wikimedia Commons
Grandison of Limerick, Oliver St. John, Viscount, 1559-1630
Image from Wikimedia Commons
Bourbon, Charles, Cardinal de, approximately 1434-1488
Image from Wikimedia Commons
Mathew Brady Levin Corot Handy - Public Domain
White, Harry, 1834-1920
Image from Wikimedia Commons
Lexrepublica - CC BY-SA 4.0
Vespignani, Virginio, 1808-1882
Image from Wikimedia Commons
Holman, J. G. (Joseph George), 1764-1817
Image from Wikimedia Commons
Scan 2008 by S J Plunkett, drawing by George Cruikshank, engr by Roberts 1823 - Public Domain
Harlowe, Sarah, 1765-1852
Image from Wikimedia Commons
Coffin, Isaac, Sir, 1759-1839
Image from Wikimedia Commons
US Government - Public Domain
Harmon, Millard Fillmore, 1888-1945
Image from Wikimedia Commons
Tausig, Otto, 1922-2011
Image from Wikimedia Commons
Berry, Walter
Image from Wikimedia Commons
Claude Mellan - Public Domain
Corneille, de Lyon, -approximately 1574
Image from Wikimedia Commons
Eiffel, Gustave, 1832-1923
Image from Wikimedia Commons
Davies, John, 1565?-1618
Image from Wikimedia Commons
unknown - Public Domain
Cumming, Alexander, 1733-1814
Image from Wikimedia Commons
Parry, Edward Abbott, Sir, 1863-1943
Image from Wikimedia Commons
Grau San Martín, Ramón, 1887-1969
Image from Wikimedia Commons
Compilation - Public Domain
Wiman, Erastus, 1834-1904
Image from Wikimedia Commons
Pendleton, Alexander Swift, 1840-1864
Image from Wikimedia Commons
Hugo Mendelson - Public Domain
Marks, Simon, 1888-1964
Image from Wikimedia Commons
Borden, Olive, 1906-1947
Image from Wikimedia Commons
J. Gurney & Sons, fl. ca. 1850-1870 - Photographer - Public Domain
Lovejoy, Owen, 1811-1864
Image from Wikimedia Commons
Mulier, Pieter, 1637-1701
Image from Wikimedia Commons
original uploader - Public Domain
Traeger, Albert, 1830-1912
Image from Wikimedia Commons
Barlach, Ernst, 1870-1938
Image from Wikimedia Commons
Eric Koch / Anefo - CC0 1.0
Kovacevich, Stephen, 1940-....
Image from Wikimedia Commons
Siegel, Arthur S. for U.S. Farm Security Administration - Office of War Information - Public Domain
Eisenhower, Milton Stover, 1899-1985
Image from Wikimedia Commons
unknown - Public Domain
Ritchie, Thomas, 1778-1854