A thorough Search of Ancestry.com and Boone histories indicate that this person never existed.
Sources
No sources. The events of McCain's life were either witnessed by Mike Ormsby or Mike plans to add sources here later.
Footnotes
↑ Entered by Mike Ormsby, Sunday, August 25, 2013.
Acknowledgments
Thank you to Mike Ormsby for creating Boone-1502 on 25 Aug 13. Click the Changes tab for the details on contributions by Mike and others.
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DNA Connections
It may be possible to confirm family relationships with McCain 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 McCain: