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unknown - Public Domain
Smithsonian Institution -
Bureau of Industrial Service. The bureau was a division of ad agency Young & Rubicam and was widely used by the television industry for distributing publicity material. - Public Domain
Cyberia3 - Public Domain
Public Domain
Stellar Publishing / unidentified staff artist - Public Domain
PipMan12345 - CC BY-SA 4.0
George Grantham Bain Collection (Library of Congress) - Public Domain
From the 1882 book "Public Men of To-day" by Phineas Camp Headley - Public Domain
Harris & Ewing, Inc. - Public Domain
Uja3000 - CC BY-SA 2.5
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Chirikov, E. N. (Evgeniĭ Nikolaevich), 1864-1932
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Bretón de los Herreros, Manuel, 1796-1873
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Subotnick, Morton
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original uploader -
Apesos, Anthony, 1953-
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Langenbeck, Conrad Johann Martin, 1776-1851
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unknown - Public Domain
MacDowell, Edward, 1860-1908
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Smithsonian Institution -
Bishop, Isabel, 1902-1988
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Bureau of Industrial Service. The bureau was a division of ad agency Young & Rubicam and was widely used by the television industry for distributing publicity material. - Public Domain
Lupton, John, 1928-1993
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Kerr, John Bozman, 1809-1878
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Cyberia3 - Public Domain
Eldredge, John, 1904-1961
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Lubin, Aryeh, 1897-1980
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unknown - Public Domain
Martin, Homer Dodge, 1836-1897
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Winn, Larry, 1919-
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Levasseur, Marie-Thérèse, 1721-1801
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LeConte, Joseph, 1823-1901
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Public Domain
Brookhart, Smith Wildman, 1869-1944
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Willard, Joseph Edward, 1865-1924
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Murphy, William J. (William John), 1839-1923
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Stellar Publishing / unidentified staff artist - Public Domain
Lasser, David, 1902-
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PipMan12345 - CC BY-SA 4.0
Singh, Ajit, 1940-
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Tarski, Alfred
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George Grantham Bain Collection (Library of Congress) - Public Domain
Angell, Norman, 1874-1967
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Ponomarev, B. N. (Boris Nikolaevich)
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Emery, David F., 1948-
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From the 1882 book "Public Men of To-day" by Phineas Camp Headley - Public Domain
Briggs, James F. (James Frankland), 1827-1905
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Harris & Ewing, Inc. - Public Domain
Parks, George A., 1883-1984
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Morlay, Gaby, 1893-1964
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Uja3000 - CC BY-SA 2.5
Fargas, Antonio, 1946-....
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Whipple, Squire, 1804-1888
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Moriarty, John, 1930-