Born April 10, 1850. Died February 13, 1906
MA: Literary Dept, University of Michigan, 1886
PhD: Geology, University of Michigan, 1888
Mary Emilie Holmes was the first woman to earn a PhD in Earth Sciences in the United States. In 1889 she became the first woman fellow elected to the Geological Society of America.
https://en.wikipedia.org/wiki/Mary_Emilie_Holmes