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Biography
Sources
Acknowledgments
WikiTree profile Martin-6190 was started through the import of O'Bryan Family tree.ged on Sep 6, 2011 by Tim Tropeck.
WikiTree profile Martin-6191 was started through the import of O'Bryan Family tree.ged on Sep 6, 2011 by Tim Tropeck.
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DNA Connections
It may be possible to confirm family relationships with John by comparing test results with other carriers of his ancestors' Y-chromosome or mitochondrial DNA.
However, there are no known yDNA or mtDNA test-takers in his direct paternal or maternal line.
It is likely that these autosomal DNA test-takers will share some percentage of DNA with John: