Bachelor of Arts Denver, 1939. Master of Theology, Iliff School Theology, Denver, 1942. Doctor of Theology, Iliff School Theology, Denver, 1952.
Master of Sacred Theology, Harvard University, 1948. Doctor of Philosophy, Harvard University, 1951.
Ordained to ministry United Church of Christ, 1942. Instructor U. Denver, 1939-1942. Minister Federated Church, Paonia, Colorado, 1943-1946, 1st Church (Congregational), East Derry, New Hampshire, 1947-1950, West Somerville Congressional Church, Massachusetts, 1950-1957.
Instructor, associate professor Tufts University, Medford, Massachusetts, 1951-1957.
Associate professor Iliff School Theology, Denver,1957-1961, professor, 1961-1988, professor emeritus, 1988. Theologian-in-residence Windward Coalition of Churches, Kailua, Hawaii, 1989.
Visiting professor Colorado Women"s College, Denver, 1966-1968, U. Denver, 1958-1962, Colorado College, Colorado Springs, 1972-1984, 89. Consultant United States National University, San Diego, 1983.
Chairman Colorado Branch American Civil Liberties Union, Denver, 1960—1962, Colorado Committee To Abolish Capital Punishment, Denver, 1966—1969. Commissioner Denver Mayor's Commission Community Relations, 1973—1974. Ordained to ministry United Church Christ, 1942.
Member of American Professors Peace Middle East, Religious Coalition Abortion Rights, Union Concerned Scientists, American Academy Religion.
Married Phyllis Ann Krider Milligan, August 22, 1942 (divorced June 1964). Children: Kathleen, Stacia Ann, Deborah, Stuart. Married Nancy Swan Whitnell Milligan, July 9, 1965.