where did he get his surgeon degree?
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who is william s. sadler? He was an American surgeon, self-trained psychiatrist, and author.
wiki:21036769
William S. Sadler [SEP] Introduction
William Samuel Sadler (June 24, 1875 – April 26, 1969) was an American surgeon, self-trained psychiatrist, and author who helped publish "The Urantia Book". The book is said to have resulted from Sadler's relationship with a man through whom he believed celestial beings spoke at night. It drew a following of people who studied its teachings. A native of Indiana, Sadler moved to Michigan as a teenager to work at the Battle Creek Sanitarium. There he met the physician and health-food promoter John Harvey Kellogg, co-inventor of corn flakes breakfast cereal, who became his mentor. Sadler married Kellogg's niece, Lena Celestia Kellogg, in 1897.