Biography of mary emily sinclair

American mathematician

Mary Emily Sinclair (September 27, 1878 – June 3, 1955) was an American mathematician whose research concerned algebraic surfaces and the calculus of variations.

She was the first woman to earn a doctorate in mathematics at the University of Chicago, and became Clark Professor of Mathematics at Oberlin College.^[1][2]

Early life and education

Sinclair was born on September 27, 1878, in Worcester, Massachusetts; she was the fourth of five children of John Elbridge Sinclair and Marietta S.

Fletcher Sinclair. Her father was a mathematics professor at the Worcester Polytechnic Institute, and also had two daughters from an earlier marriage. Her mother, originally from Worcester, taught English and modern languages at the Worcester Polytechnic Institute but stopped when her children were born.

After graduating in 1896 from the Worcester Classical High School, Mary Emily Sinclair became a student at Oberlin, and as a s