"California Death Index, 1940-1997," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:VGYQ-XTJ : 26 November 2014), John J Hoff, 17 May 1991; Department of Public Health Services, Sacramento.
"United States Social Security Death Index," , FamilySearch (https://familysearch.org/ark:/61903/1:1:J56C-9TP : 11 January 2021), John J Hoff, 19 May 1991; citing U.S. Social Security Administration, Death Master File, database (Alexandria, Virginia: National Technical Information Service, ongoing).
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