The birth of Catherine, daughter of John and Elizabeth Clarke, on 1 Dec. 1672, is recorded in the Charles Parish register. Elizabeth Clark married Samuel Tompkins as her second husband. Catherine's maiden name and parents are speculative.
Robert Kerby married Catherine Clark Tompkins by January 1690 in in Charles Parish, York County. Catherine was daughter of John Clark and step-daughter of Humphrey Tompkins Catherine Clarke Virginia.
Robert and Catherine had twelve children during their marriage.
It may be possible to confirm family relationships with Catherine by comparing test results with other carriers of her mitochondrial DNA.
However, there are no known mtDNA test-takers in her direct maternal line.
It is likely that these autosomal DNA test-takers will share DNA with Catherine:
marriage date is a few years too late - dau. Elizabeth b. 1690 - I can add citation later; there is a birth record for a Catherine Clark on that date but there needs to be some evidence to identify her as the one who married Robert Kerby; no Catherine Tompkins in parish register (maybe they had no children together)