Marguerite Davis
Marguerite Davis (September 16, 1887, Racine, Wisconsin - September 19, 1967, Racine, Wisconsin) was the American biochemist, co-discoverer of vitamins A and B with Elmer Verner McCollum in 1913.
She earned the bechelor of science degree in 1910 at the University of California, Berkeley. In 1913, Davis together with McCollum identified