National Institutes of Health (American, 1887-)
Bram Engelse (Dutch, 20th Century)
Weimer Pursell (American, 1906-1974)
William Carqueville (American, 1871-1946)
Anonymous
Walter Conant Greenough (American, 1857 – 1898)
U.S. Information Agency (American, 1953-1999)
Kazimierz Brzozowski (Polish, 1871-1945)
Augustus Jansson (Swedish, 1863 - 1931)
Jorge Somarriba (American, 20th Century)
Anonymous
Roland Davies (Welsh, 1904-1993)
W.B. King (American, 19th/20th century)
Anonymous
Michael Mabry (American, 1955-)
U.S. Public Health Service (American, 1798-)
U.S. Information Agency (American, 1953-1999)
Thijs van Delden (Dutch, 20th Century)
Anonymous
Louis Rhead (American, 1857-1926)
Anonymous
Eric Rohman (Swedish, 1891 - 1949)