"United States, GenealogyBank Obituaries, 1980-2014," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:QV5W-2BC8 : accessed 31 August 2019), John Zerr in entry for Beatrice Vivian Zerr, Missouri, United States, 31 Jul 1990; from "Recent Newspaper Obituaries (1977 - Today)," database, GenealogyBank.com (http://www.genealogybank.com : 2014); citing , born-digital text.
"United States Social Security Death Index," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:VMZL-YT5 : 20 May 2014), John R Zerr, 15 Nov 2009; citing U.S. Social Security Administration, Death Master File, database (Alexandria, Virginia: National Technical Information Service, ongoing).
"United States, GenealogyBank Obituaries, 1980-2014," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:QKLY-L4K5 : accessed 31 August 2019), John Zerr, Missouri, United States, 17 Nov 2009; from "Recent Newspaper Obituaries (1977 - Today)," database, GenealogyBank.com (http://www.genealogybank.com : 2014); citing St. Louis Post-Dispatch, born-digital text.
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