L. Ron Hubbard
Lafayette Ronald Hubbard (1911 -1986) was the founder of the Church of Scientology and a fiction and non-fiction author. Born on 13 March 1911 in Tilden, Nebraska to Ledora May Waterbury and Harry Ross Hubbard (born Henry August Wilson), he would spend his early childhood in Kalispell, Montana. 
Hubbard wrote Dianetics: The Modern Science of Mental Health in 1950.
How L. Ron Hubbard came to found these subjects is an immense story that effectively began in the first decades of the 20th century with his befriending of indigenous Blackfeet Indians in and around his Helena, Montana home. From here, the story unfolds with his study of Freudian theory with a Commander Joseph C. Thompson — the first United States naval officer to actually work with Freud in Vienna — and through journeys in Asia where Mr. Hubbard spent the better part of two years in travel and study.