National Institutes of Health (American, 1887-)
U.S. Information Agency (American, 1953-1999)
Richardson and Foos (American, 19th/20th Century)
Julius Gipkens (German, 1883-1968)
Gerrit Albertus Beneker (American, 1882-1934)
Edward Penfield (American, 1866 - 1925)
Sugiura Hisui (Japanese, 1876 - 1965)
Paul Fischer (Danish, 1860 – 1934)
Anonymous
Eric Rohman (Swedish, 1891 - 1949)
Edward Penfield (American, 1866 - 1925)
Ben Nason (American, 1915-)
Eugene Feldman (American, 1921-1975)
Richard Nicolaüs Roland Holst (Dutch, 1868 - 1938)
Frank Swick (American, 19th/20th Century)
Georges Delaw (French, 1871-1938)
Edward Penfield (American, 1866 - 1925)