Thank you all so much.
I really appreciate Ciderdrinker all your research for me.
I have found some further links since posting... back two more generations from Sarah Pye. I too thought that Sarah's parents were John Pye and Ann Bosworth and Ann's parents, Isaac Bosworth and Joan/Joanne Elliot. I shall do some research into the other suggestions you mentioned too.
I saw Thomas Pye's will for 1723 and I'll look that up the next time I have a session on Find My Past. Lichfield says it includes Admin papers and an Inventory of his goods but doesn't mention the actual will but Find My Past may have that. Being called Squire of Southwood, does make me think he had some standing in the community.
I hear what you are saying re people just learning to write their name for their marriage. Am I right in thinking that apart from Marriage Licenses, around the 1750-60's date, it would have been the latest for signatures to be on the registers, or did it vary from parish to parish on the format of the registers?
I really appreciate your kind responses. Thank you very much.
Tutor7