The Sanford collection includes his own works as well as volumes from A Select Library of The Nicene and Post-Nicene Fathers of The Christian Church, The Ante-Nicene Fathers Translations of The Writings of The Fathers Down To A.D. 325, books by Fritz Kunkel, and other religious and Jungian publications.

John A. Sanford (1929-2005), also known by the nickname Jack, was a parish priest for 19 years before starting his private practice as a psychoanalyst. He focused his work on the intersections between inner growth as offered in depth psychology and Christianity. He studied with Fritz Kunkel and completed his training in Jungian analysis at the C.G. Jung Institute in Los Angeles. Books he authored include The Invisible Partners, Healing and Wholeness, Fritz Kunkel, The Strange Trial of Mr. Hyde, and Mystical Christianity: A Psychological Commentary on the Gospel of St. John. See the Opus Archives and Research Center website for John Sanford's bibliography.