Hi Chris,
Amongst the Keigs you are researching do you happen to have a William Keig (possibly born 1705 to Thomas Keig and Catherine Cornish) who married Elinor Quirke (born 1709) on the 22nd May, 1730 at Arbory? I have sighted the film with the marriage however I cannot ascertain if Thomas and Catherine were indeed William's parents.
Thank you.