According to the State of California. California Birth Index, 1905-1995. Center for Health Statistics, California Department of Health Services, Sacramento, California. Searchable at http://www.familytreelegends.com/records/39461
Towne, Robert (6 December 2012). "Robert Towne Dusts Off a Classic". The Hollywood Interview (Interview). Interviewed by Alex Simon. Retrieved 29 March 2020.