Ruth Ella Moore, American scientist (died 1994)

Ruth Ella Moore was an American bacteriologist and microbiologist, who, in 1933, became the first African-American woman to be awarded a Ph.D. in a natural science. She was a professor of bacteriology at Howard University. A decade later, she was installed as the head of the department of bacteriology, which she renamed to the department of microbiology. During that period she was promoted to associate professor of microbiology.