
O'Connell (English, 20th Century)

Frank Wootton (English, 1911-1998)

Russell, Morgan & Co. (American, 19th/20th century)

John Sloan (American, 1871 - 1951)

Laboratoire du docteur E. Aubert (French, 20th Century)

Antonin-Marie Chatinière (French, 1828-1916)

Anonymous

Anonymous

Louis Oury (French, 1867 - 1940)

Anonymous

Laboratoires Ciba (French, 20th Century)

Bob Shelley (American, 20th Century)

Leonetto Cappiello (Italian, 1875-1942)

Peace Corps (American, 20th Century)

Lloyd Harrison (American, 19th/20th Century)

William Nicholson (English, 1872-1949)

Reinier Willem Petrus de Vries (Dutch, 1874 - 1952)

Edward Penfield (American, 1866 - 1925)

Edward Penfield (American, 1866 - 1925)

Edward Penfield (American, 1866 - 1925)

Emil Cardinaux (Swiss, 1877–1936)

National Institutes of Health (American, 1887-)

Attilio Pusterla (Italian, 1862-1941)

Adolfo Hohenstein (German, 1854–1928)