Research Notes:
An Edward Billing married Penelope Hedges on 20 Mar 1817 in Great Haseley, Oxford, England (IGI record)
DNA [1]
[1] The family tree of a person who has a DNA match to a sibling of Janet suggests a lineage to Edward Billing who is a sibling of Janet's ancestor William Billing, child of John Billing and Mary White. The DNA match suggests a relationship of 5th to 8th cousins. Our genealogy research and the tree of the cousin suggest a relationship of 5th cousins, [Link].