Thank you slowhands for taking an interest in my problems.

The marriage record for Ann Long and George Nash in 1842 (FoD Record_ID: 12590) gives the father of Ann as Richard Long, so I had assumed that Richard and the mother Sarah were married. Hence I was not looking for the birth/baptism of a Sarah Long, but hoped that there would be a record of her first marriage to Richard Long to give her maiden name.

Mike