William S. Bowdern
American Catholic exorcist (1897–1983) / From Wikipedia, the free encyclopedia
William S. Bowdern (February 13, 1897 – April 25, 1983) was a Catholic priest[1] of the Society of Jesus in St. Louis, Missouri. He was the author of The Problems of Courtship and Marriage printed by Our Sunday Visitor in 1939. He was a graduate of and taught at St. Louis University High School; he also taught at St. Louis University.
Bowdern participated in an exorcism of Roland Doe in 1949. The incident became the basis of William Peter Blatty's 1971 novel The Exorcist.