Education
In 1910 he received a Doctor of Philosophy from Princeton University as Oswald Veblen"s first doctoral student.
In 1910 he received a Doctor of Philosophy from Princeton University as Oswald Veblen"s first doctoral student.
During the academic year 1910/1911 Mitchell was an instructor at Yale University. At the University of Pennsylvania he was an instructor from 1911 to 1914 and then a professor until his death in 1943 at age 58 from coronary thrombosis.