Anonymous
National Institutes of Health (American, 1887-)
Ron Johnstone (American, 20th century)
Mark Rutherford (American, 19th/20th Century)
National Institutes of Health (American, 1887-)
U.S. Information Agency (American, 1953-1999)
Eric Rohman (Swedish, 1891 - 1949)
National Institutes of Health (American, 1887-)
Anonymous
Eric Rohman (Swedish, 1891 - 1949)
Anonymous
Augustus Jansson (Swedish, 1863 - 1931)
Anonymous
Rudolf Kalvach (Austrian, 1883–1932)
Henriëtte Willebeek le Mair (Dutch, 1889 – 1966)
National Institutes of Health (American, 1887-)
Will Bradley (American, 1868 – 1962)
Albert Wilfred Barbelle (American, 1887–1957)
Will Bradley (American, 1868 – 1962)
John Nunney (English, 1897-1966)
Anonymous
Eric Rohman (Swedish, 1891 - 1949)
Abby E. Underwood (American, 1871-1941)