Bachelor of Science, Trinity College, Hartford, Connecticut, 1937. Master of Arts, Harvard University, 1938. Doctor of Philosophy, Harvard University, 1941.
Doctor of Science (honorary), Trinity College, 1963.
Instructor mathematics Harvard University, Cambridge, Massachusetts, 1939—1941, University Maryland, College Park, 1941—1942. Assistant professor mathematics Mount Holyoke College, South Hadley, Massachusetts, 1942—1944. Senior aerodynamicist United Aircraft Research Laboratory, East Hartford, Connecticut, 1946—1948, consultant, 1948—1956.
Associate professor mathematics Trinity College, Hartford, 1948—1956. Manager engineer computing Pratt & Whitney Aircraft Division United Technologies Corporation, East Hartford, 1956—1982, consultant Parent Company, 1982—1983. Consultant Pratt & Whitney Aircraft, from 1982.
President Edwin N. Nilson Associates Ltd., Bloomfield, Connecticut, 1982—1986. Served to lieutenant (junior grade) United States Naval Reserve, 1944-1946, served to lieutenant (junior grade) United States Naval Academy.
Member of Mathematics Association America, Sigma Xi, Phi Beta Kappa.
Married Edith May Tychsen Nilson, August 16, 1941. Children: Jean N. Ellestad, Richard E., David H.