Hi Diddy: I think you are right and that Ann Freeman was my relative. I've seen that record before but couldn't be absolutely certain. But with Langar being so close it looks very likely.
Regarding your other suggestions, I believe it's possible that Wm. Snr. may have been married before Dorothy, he was 29 when he married her, but I can't find death notices for Mary Skinner or Mary Guy, at least ones that fit those dates. My line is definitely descended through Dorothy though. The William who married Ann Merry was probably a nephew. And thanks for including the Long Clawson records, I had already seen them but I appreciate your pointing them out.
I also appreciate your making me aware of freereg. I had no knowledge of it before today, so I'll be checking some other concerns there.
Thanks again for taking the time to find this information and for passing it on, next time I'm in Leicestershire I'll buy you a pint!
Brian