For her work with vitamin B-12, Dorothy Crowfoot Hodgkin (1910-1994) was awarded the Nobel Prize in chemistry.

Dorothy Crowfoot Hodgkin employed the technique of X-ray crystallography to determine the molecular structures of several large biochemical molecules. When she received the 1964 Nobel Prize in chemistry for her accomplishments, the committee cited her contribution to the determination of the structure of both penicillin and vitamin B₁₂.

Hodgkin was born in Egypt on May 12, 1910 to John and Grace (Hood) Crowfoot. She was the first of four daughters. Her mother, although not formally educated beyond finishing school, was an expert on Coptic textiles, and an excellent amateur botanist and nature artist. Hodgkin's father, a British archaeologist and scholar, worked for the Ministry of Education in Cairo at the time of her birth, and her family life was always characterized by world travel. When World War I broke out, Hodgkin and two younger...