Anonymous
National Institutes of Health (American, 1887-)
Abram Games (English, 1914-1996)
U.S. Information Agency (American, 1953-1999)
Leonetto Cappiello (Italian, 1875-1942)
Anonymous
NASA (American, 1958 -)
Anonymous
Anonymous
Anonymous
Charles Dana Gibson (American, 1867 - 1944)
F. Vecchi (Italian, 19th/20th century)
U.S. Information Agency (American, 1953-1999)
William Carqueville (American, 1871-1946)
Bugs Bramley (American, 20th Century)
Philibert-Paul Charbonnier (French, 1866- ?)
Kate Charlesworth (English, 1950-)
Karl Wiener (Austrian, 1901-1949)
Theo Nieuwenhuis (Dutch, 1866-1951)
Charles Dana Gibson (American, 1867 - 1944)
Anonymous
Shari Weisberg (American, 20th Century)
National Institutes of Health (American, 1887-)
Thomas Kelly (American, 19th/20th Century)
Charlotte Lichtblau (American, 1925-2013)
Julius Klinger (Austrian, 1876 – 1942)