In 1981, Humphreys described her first attempts to find a job after completing her Ph.D.: From 1935 to 1936, Humphreys was an instructor of mathematics and
physics at
Mount St. Scholastica College. She began teaching at
H. Sophie Newcomb Memorial College in 1936 and was promoted to
assistant professor in 1941. She was also an assistant professor at
Barnard College in the summer of 1944, and an assistant professor at
Tulane University in the summer of 1946. After one year at Randolph-Macon, she was named
Gillie A. Larew Professor and head of the mathematics department. She was head of the department until 1979. For the 1955-1956 academic year, Humphreys went on sabbatical leave to the University of British Columbia (UBC). During this time, she visited undergraduate mathematics programs at several colleges and universities to examine their methods. From 1962 to 1963, she was a
visiting professor at UBC as a
National Science Foundation (NSF) faculty fellow. In the summers, Humphreys taught high school teachers at NSF summer institutes. From 1965 to 1969, Humphreys worked for the
Educational Testing Service. She was also a consultant in 1975 for the
American Council on Education regarding mathematics course credit given by nonacademic organizations. Humphreys was an active member of the
Mathematical Association of America at both the sectional and national levels. == Awards and legacy ==