Image from Wikimedia Commons
US Congress - Public Domain
Radcliffe Kelso - CC BY-SA 4.0
anonymous - Public Domain
unknown. scanned by :ca:Amadalvarez - CC BY-SA 4.0
unknown - Public Domain
Vera Goulet - CC BY-SA 3.0
Center for Women's Global Leadership. - CC BY-SA 3.0
User at project link - Public Domain
Olivier Strecker - CC BY-SA 3.0
Comvaser -
The Safety Press - Public Domain
Unattributed - Public Domain
Image from Wikimedia Commons
US Congress - Public Domain
Talmadge, Herman E. (Herman Eugene), 1913-2002
Image from Wikimedia Commons
Coulouris, George, 1903-1989
Image from Wikimedia Commons
Radcliffe Kelso - CC BY-SA 4.0
McCutcheon, John, 1952-
Image from Wikimedia Commons
anonymous - Public Domain
Garrett, Eileen J. (Eileen Jeanette), 1893-1970
Image from Wikimedia Commons
unknown. scanned by :ca:Amadalvarez - CC BY-SA 4.0
González, Julio, 1876-1942
Image from Wikimedia Commons
Kelsey, Henry, approximately 1670-approximately 1724
Image from Wikimedia Commons
unknown - Public Domain
Gates, Elmer, 1859-1923
Image from Wikimedia Commons
Vera Goulet - CC BY-SA 3.0
Goulet, Robert, 1933-2007
Image from Wikimedia Commons
Center for Women's Global Leadership. - CC BY-SA 3.0
Bunch, Charlotte, 1944-....
Image from Wikimedia Commons
Miall, Edward, 1809-1881
Image from Wikimedia Commons
Obey, David R.
Image from Wikimedia Commons
Pollarolo, Carlo Francesco, approximately 1653-1723
Image from Wikimedia Commons
User at project link - Public Domain
Tosatti, Vieri, 1920-1999
Image from Wikimedia Commons
Wilson, John S. (John Steuart), 1913-2002
Image from Wikimedia Commons
Olivier Strecker - CC BY-SA 3.0
MacColl, Catriona, 1954-....
Image from Wikimedia Commons
Comvaser -
Castro Pacheco, Fernando, 1918-
Image from Wikimedia Commons
Baxter, Charles 1809-1879
Image from Wikimedia Commons
Harvey, Fred
Image from Wikimedia Commons
The Safety Press - Public Domain
Irving, Mary Jane, 1914-
Image from Wikimedia Commons
Ford, Francis Xavier, 1892-1952
Image from Wikimedia Commons
Verwey, Albert, 1865-1937
Image from Wikimedia Commons
unknown - Public Domain
Evans, Thomas Cooper, 1924-2005
Image from Wikimedia Commons
unknown - Public Domain
Weisbach, Julius Ludwig, 1806-1871
Image from Wikimedia Commons
Hunter, John, 1728-1793
Image from Wikimedia Commons
Jones, Henry Festing, 1851-1928
Image from Wikimedia Commons
Marston, Robert Q., 1923-
Image from Wikimedia Commons
unknown - Public Domain
Herbert, Robert, Sir, 1831-1905
Image from Wikimedia Commons
Unattributed - Public Domain
Risler, Édouard 1873-1929
Image from Wikimedia Commons
Pierce, Edward, -1694
Image from Wikimedia Commons
unknown - Public Domain
Partington, Blanche, 1866-1951