Graham, this is a while since you last posted but will see if you are still actively pursuing your ABBS ancestors.
My husband's 2x great grandmother was Mary Anne Abbs (baptized 1819 Aylmerton) married to John Link (c 1840 East Gwillimbury Ontario Canada). Her father was William Abbs and her mother Martha Chapman. They emigrated to Canada after the birth of Richard (baptized 1831 at Aylmerton) and before the birth of Catherine (born Ontario 1834). William Abbs and Martha Chapman were married in 1816 at Aylmerton. William was baptized (with his twin brother Thomas) 1793 at Runton.
William's father was Francis who was baptized at Runton 1764 and the son of John Abbs and Mary (Wright??). John may be the son of Richard and Mary Abbs and baptized 1734 at Runton.