I think it is a very logical idea, as you say they kept going until they had a Judith that survived. It is certainly worth pursuing. I have the parish registers for Swavesey, Cottenham, Rampton, Over, Willingham & Fen Drayton, so if you require a lookup for anything , I am very happy to help. I will definitley take another look at Audline. It is amazing what you can find out. My 3rd Great Grandmother Charlotte Thorp who married William Webster 1798-1877, her mother was Mary Dodson, trace that back two more generations to Ann Crisp and I suddenly have Lords, Ladies & Sirs pop up.
regards
M