Peace Corps (American, 20th Century)
Gebroeders Braakensiek (Dutch, 19th Century)
Richard Nicolaüs Roland Holst (Dutch, 1868 - 1938)
George Reiter Brill (American, 1867 - 1918)
U.S. Information Agency (American, 1953-1999)
Gian Emilio Malerba (Italian, 1880-1926)
Theo van Hoytema (Dutch, 1863-1917)
National Institutes of Health (American, 1887-)
Hendrik van der Straaten (Dutch, 1665 - 1722)
Anonymous
Anonymous
Anonymous
Charles Wellington Reed (American, 1841-1926)
Dan Smith (American, 1835-1934)
Anonymous
Anonymous
Eric Rohman (Swedish, 1891 - 1949)
George Reiter Brill (American, 1867 - 1918)
Anonymous
Anonymous
Anonymous
National Caries Program (American, 20th Century)
Kurt Libesny (Austrian, 1892-1933)
Anonymous
J. Pagés (American, 19th/20th Century)
Henri Thiriet (French, 1873-1946)
G. Capon (French, 19th/20th century)
Henry Summer Watson (American, 1868-1933)
Anonymous
Anonymous
Edward McKnight Kauffer (American, 1890-1954)
Theo van Hoytema (Dutch, 1863-1917)
Francis Nys (Belgian, 1863–1900)
Lanny Sommese (American, 1943-)
David Klein (American, 1918 – 2005)
Dietmar Winkler (German, 1938 -)
Theo van Hoytema (Dutch, 1863-1917)
Leonetto Cappiello (Italian, 1875-1942)
Anonymous