"United States, GenealogyBank Obituaries, 1980-2014," database with images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/QKTF-TXLH : 18 October 2016), Margie Anderson in entry for Mr John R Anderson, 30 Nov 2005; from "Recent Newspaper Obituaries (1977 - 2014)," database, GenealogyBank.com (http://www.genealogybank.com : 2017); citing Maryland Gazette, The, born-digital text.
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It may be possible to confirm family relationships with Marjory by comparing test results with other carriers of her ancestors' mitochondrial DNA.
However, there are no known mtDNA test-takers in her direct maternal line.
It is likely that these autosomal DNA test-takers will share DNA with Marjory: