Ph.D. Harvard University, Cambridge, Massachusetts, 1910
Evans worked in potential theory, functional analysis, integral equations and the problem of minimal surfaces. He also wrote textbooks, on functional equations, on economics, and on other topics. Evans served on the faculty at Rice University (Houston, TX) from 1912-1934 (commissioned as a captain in the Air Branch of the U.S. Signal Corps during World War I), and in 1934 went to chair the mathematics department at the University of California, Berkeley, where he was asked to improve the department and set up a graduate program in mathematics. He chaired the department until 1949 (undertaking work related to the war effort during World War II) and retired in 1955. The math building at the University of California, Berkeley is Evans Hall, named in his honor. Evans was a member of the American Academy of Arts and Sciences and of the U.S. National Academy of Sciences.