Mildred Waltrip (American, 1911-2004)
National Institutes of Health (American, 1887-)
Feodor Rojankovsky (Russian, 1891-1970)
Eric Rohman (Swedish, 1891 - 1949)
Eric Rohman (Swedish, 1891 - 1949)
National Institutes of Health (American, 1887-)
Augustus Jansson (Swedish, 1863 - 1931)
Anonymous
National Institutes of Health (American, 1887-)
Albert Herter (American, 1871-1950)
Leonetto Cappiello (Italian, 1875-1942)
Bureau of the Census (American, 1902 - )
Dietmar Winkler (German, 1938 -)
H.C. Miner Litho. Co. (American, 1896-1935)
Anonymous
H. Edward Oliver (American, 20th Century)
W. H. Butler (American, 19th/20th Century)
Fortune Bovard (Swiss, 1875-1947)
Peter Fraser (English, 20th Century)
Anonymous
Henry Summer Watson (American, 1868-1933)
Edward Penfield (American, 1866 - 1925)