Sorry, bit slow. I see what you mean - even if all the IGI entries are accurate I won't know which couple the children belong to, especially after 1758. Also, the burial in 1808 of Isabel Corlett als (probably) Kneale could be either one.

The will of John Corlett I was wondering about in the other message probably isn't right either - the children's names are common and so don't prove anything, and he would surely have mentioned his wife if she survived him.