Find a Grave, database and images (https://www.findagrave.com/memorial/155694114/mary-p-mahoney: accessed 9 July 2023), memorial page for Mary P Sweeney Mahoney (24 Mar 1867–30 Sep 1934), Find a Grave Memorial ID 155694114, citing Saint Charles Borromeo Roman Catholic Cemetery, Drexel Hill, Delaware County, Pennsylvania, USA; Maintained by Terri McFadden Wisniewski (contributor 47980200).
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DNA Connections
It may be possible to confirm family relationships with Mary by comparing test results with other carriers of her 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 some percentage of DNA with Mary: