Why is Callis changed to Kelly?
Father, Michael Callis, was only 16 when he was born and mother ? Mercy was 6 years older than the father. Very rare occurrence for the mother to be that older than the father in these times. Maybe this connection is a mistake...?
It may be possible to confirm family relationships with William 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 William: