AB, Brown University, 1949. License Theology, University Toronto, 1952. Master of Sacred Theology, Harvard University, 1953.
Doctor of Theology, Harvard University, 1959.
Instructor, Philadelphia Division School, 1960-1963; assistant professor, Philadelphia Division School, 1963-1966; associate professor, Philadelphia Division School, 1966-1974; professor, Episcopal Division School, Cambridge, Massachusetts, 1974-1993; retired, Episcopal Division School, Cambridge, Massachusetts, since 1993. Co-chairperson Philadelphia Seminar on Christian Origins, 1972-1973.
(Misrash on Torah books Numbers and Deuteronomy translated...)
Member Conference Anglican Theologians, Association Jewish Studies, Society Biblical Literature, Christian Study Group on Judaism (chairperson 1983-1985).
Married Mary VanZandt Rust, June 13, 1956. Children: William Thomas III, Stephen John.