From a quick search on ancestry I can see that all the trees with her in them contain no parents for her. The Kingskerswell parish records are held at Devon’s general record office, these cover 1752-1919 and they also hold some non-conformist registers. This link shows what parish registers there are and the ‘information’ link shows how to contact the record office http://www.devon.gov.uk/parish_register_… I don’t know if you will have to pay for any of these services. I know they will have professionals that will search for you for a fee but it may be only a minimal charge if you go in person. Try giving them a phone, it won’t do any harm. Good luck, it’s so annoying when you hit a brick wall isn’t it?