"United States Social Security Death Index," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:J1TJ-26V : accessed 27 January 2016), Margaret Yeakley, Dec 1985; citing U.S. Social Security Administration, Death Master File, database (Alexandria, Virginia: National Technical Information Service, ongoing).
http://www.findagrave.com/cgi-bin/fg.cgi?page=gr&GRid=116174156
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