Hello Polly.
Thank you very much for that detailed infomation, and sorry for the delay in responding.
I have passed the info to my friend (100 miles away) and she is thrilled to have another generation back. She is not too bothered to have copies of the original entires, but thank you very much for making the offer. Her Isabella (1812) must have been a sister to your ancient ancestor - a child of Thomas Wilkinson & Elizabeth Brewis.
The 'brick wall' you mention
may collapse suddenly

- I have experienced that more than once in my own family research - and so have many others if you read threads on this site. After all, I would not have got your information if I had not come across your posting on here. So, I wish you success in your research and thanks once again for your input.
Malcolm