
Jan Sluijters (Dutch, 1881 - 1957)

Hans Eggimann (Swiss, 1872 - 1929)

Karl Wiener (Austrian, 1901-1949)

Centers for Disease Control and Prevention (American, 1946-)

Harrison Fisher (American, 1877 - 1934)

Imp. H. Laas (French, 19th/20th century)

Arthur Secunda (American, 1927-)

Dick Breebaart (Dutch, 1949-2017)

National Institutes of Health (American, 1887-)

Laboratoires Crinex-Uvé (French, 20th Century)

U.S. Information Agency (American, 1953-1999)

Theo van Hoytema (Dutch, 1863-1917)

Joseph Gould (American, 1880 - 1935)

Chris Lebeau (Dutch, 1878 – 1945)

A.W.B. Lincoln (American, 19th/20th Century)

Anonymous

Emil Cardinaux (Swiss, 1877–1936)

Adolf Friedländer Lith. (German, 19th/20th century)

Freddy Wittop (American, 1911 – 2001)

Anonymous