Paternal relationship is confirmed by a 23andMe test match between Wendi Dunlap and J. C., documented third cousins. Their MRCAs are Thomas T. Dunlap and Margaret E. Lord, their second-great-grandparents. Predicted relationship from 23andMe: Third to Fourth Cousin, based on sharing 0.61% of DNA: 46 cM, 3 segments.
Maternal relationship is confirmed by a 23andMe test match between Wendi Dunlap and W.G., documented third cousins. Their MRCAs are Benjamin Franklin Price and Sarah Elizabeth Miller, their second-great-grandparents. Predicted relationship from 23andMe: Second to Third Cousin, based on sharing 1.70% of their DNA: 127 cM, 8 segments.
It may be possible to confirm family relationships with Arthur by comparing test results with other carriers of his Y-chromosome or his mother's 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 DNA with Arthur: