Image from Wikimedia Commons
US Government Printing Office - Public Domain
Mathew Brady Levin Corot Handy - Public Domain
JFT257 - CC BY-SA 3.0
(capsulated) - CC BY 2.0
GhostPirat - Public Domain
Unknown (before 1895) - Public Domain
Albert Baxter - Public Domain
National Archives and Records Administration, identifier #12091238 (local identifier #P 48) - Public Domain
Michel Martin Drolling - Public Domain
Unknown military photographer of the Signal Corps - Public Domain
Brady-Handy Photograph Collection (Library of Congress) - Public Domain
George Dance - Public Domain
Fil676 - CC BY-SA 3.0
Alan Light - CC BY-SA 2.0
Anonymous - Public Domain
Peter Britt (1819-1905) - Public Domain
Lamerkhav - CC BY 3.0
NBC Television - Public Domain
Image from Wikimedia Commons
US Government Printing Office - Public Domain
Rousselot, John H.
Image from Wikimedia Commons
Rutherford, Alexander Cameron, 1857-1941
Image from Wikimedia Commons
Mathew Brady Levin Corot Handy - Public Domain
Buckingham, William A. (William Alfred), 1804-1875
Image from Wikimedia Commons
JFT257 - CC BY-SA 3.0
Tremblay, Gilles
Image from Wikimedia Commons
Castrén, M. Alexander (Matthias Alexander), 1813-1852
Image from Wikimedia Commons
(capsulated) - CC BY 2.0
Flux Pavilion, 1989-
Image from Wikimedia Commons
Beerstraten, Jan Abrahamsz., 1622-1666
Image from Wikimedia Commons
GhostPirat - Public Domain
Perrin, Abner M., 1827-1864
Image from Wikimedia Commons
Walpole, Thomas, 1727-1803
Image from Wikimedia Commons
Unknown (before 1895) - Public Domain
Bing, Siegfried, 1838-1905
Image from Wikimedia Commons
Twain, Mark, 1835-1910
Image from Wikimedia Commons
Albert Baxter - Public Domain
Campau, Louis, 1791-1871
Image from Wikimedia Commons
National Archives and Records Administration, identifier #12091238 (local identifier #P 48) - Public Domain
Holmes, Oliver W. (Oliver Wendell), 1902-1981
Image from Wikimedia Commons
Michel Martin Drolling - Public Domain
Drölling, Michel-Martin 1786-1851
Image from Wikimedia Commons
Unknown military photographer of the Signal Corps - Public Domain
Miles, Sherman, 1882-1966
Image from Wikimedia Commons
Nixon, Jeremiah W. (Jeremiah Willson), 1956-
Image from Wikimedia Commons
Hopper, Isaac T. (Isaac Tatem), 1771-1852
Image from Wikimedia Commons
Cortez, Ricardo, 1899-1977
Image from Wikimedia Commons
Brady-Handy Photograph Collection (Library of Congress) - Public Domain
Williams, Jeremiah Norman, 1829-1915
Image from Wikimedia Commons
George Dance - Public Domain
Incledon, Charles Benjamin, 1763-1826
Image from Wikimedia Commons
Fil676 - CC BY-SA 3.0
Hogan, Michael J., 1943-....
Image from Wikimedia Commons
Collingwood, Cuthbert Collingwood, Baron, 1750-1810
Image from Wikimedia Commons
Korologos, Tom Chris, 1933-
Image from Wikimedia Commons
Alan Light - CC BY-SA 2.0
Rachins, Alan
Image from Wikimedia Commons
Anonymous - Public Domain
Chandler, Charles de Forest, 1878-1939
Image from Wikimedia Commons
Dyer (Destroyer)
Image from Wikimedia Commons
Peter Britt (1819-1905) - Public Domain
Davenport, George, 1783-1845
Image from Wikimedia Commons
Lamerkhav - CC BY 3.0
Yavin, Chaim, 1932-
Image from Wikimedia Commons
Major, Samuel C. (Samuel Collier), 1869-1931
Image from Wikimedia Commons
NBC Television - Public Domain
Bregman, Buddy