Denise, You could be right about Jane Clifford remarrying. Perhaps we now have her maiden name ( Campbell).
Marriage St Mary's 12 Nov 1878
Patrick Watterson, Chester St, son of John Watterson to Jane Clifford, Athol St. dau of James Campbell. Witnesses Edward Campbell, 12 Cleators Lane & Susan Hilton, 21 Lord St.

Pleased to be of help. Marie