William Thetford (April 25, 1923 – July 4, 1988) was trained as a psychologist and remained professionally active in this field throughout his life. Thetford worked in a collaborative venture with Helen Schucman in writing and providing some of the initial edits for A Course In Miracles (ACIM), a self-study curriculum.^[1] He died in 1988, aged 65, in Tiburon, California, after having made his involvement with the ACIM material and its study the most central focus of his life. (Source: http://en.wikipedia.org/wiki/William_Thetford)