Letter from Leigh to Mr. W.E. Zeuch of American Foundation for Abundance in Oklahoma City, discussing Leigh's beliefs that all religions are "dope" for the people, appealing to emotion, never common sense. 3827.2718-.1. William R. Leigh Manuscript Collection. January 13, 1939. Tulsa: Gilcrease Museum, https://collections.gilcrease.org/object/38272718-1 (08/02/2018).