It may be possible to confirm family relationships with Harvey 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 Harvey:
Lamb-6891 and Lamb-4392 appear to represent the same person because: It looks like we each have some information the other does not. Harvey Lamb was my great-grandfather. William Newton Lamb was my grandfather. Charles Duane Lamb was my father.