William Norton Davis' Mysterious Death, Continued.

A while ago I wrote a post about the brother of Minnie Davis,  Dr. William Norton Davis, who lived and worked in Spokane, Washington in the early 1900s.  Records for William and his wife vanished mysteriously after the 1900 census.  Here is a record I found for him in the American Medical Association's database "U.S. Deceased Physicians File (AMA) 1864-1968".  They don't know what happened to him either.