Diploma, Providence Bible Institute, 1950. Bachelor, Wheaton College, 1952. Master of Arts, Wheaton College, 1955.
Doctor of Divinity, Denver Seminary, 1984.
Pastor Bible Church, Chicago, 1951—1953. Member staff archaeological expedition Wheaton (Illinois) College, 1953, 1954. Missionary Conservative Baptist, Amman, Jordan, 1955—2000.
Founder, director Kelsey Arabic Language School, 1965—2000. Lecturer, speaker on Islam and Middle East, since 2000.
Treasurer Evangelical Relief Society, Amman. Pastor Evangelical Church, 1956—2000.
Married Martha Marie Nystedt Kelsey, August 18, 1951. Children: William, Paul, Linda, Lois.