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Mike Murtishaw's DNA has been tested for genealogical purposes. It may be possible to confirm family relationships by comparing test results with Mike or other carriers of his ancestors' Y-chromosome or mitochondrial DNA.
Y-chromosome DNA test-takers in his direct paternal line on WikiTree:
Family Tree DNA Y-DNA Test 111 markers, haplogroup R-L48, FTDNA kit #237269
Mitochondrial DNA test-takers in the direct maternal line: