Hello Ruth,
My info is from the 1881 Wales census. Eliza Kneale was married to William Hitchings by this time. The census gave me her birthplace, their marriage certificate gave me her maiden name.
Neither Eliza nor Kneale are popular names here in Canada, so I thought tracking her down would be easy. I was surprised to see how common both names are! Another respondent said they had found an "Eliza Thomson", daughter of William Kneale and Eliza Thomson, christened on Oct 01, 1841 in Lezayre. 2 of Eliza's daughters have the initial "T" in their names, so this Eliza is also a possibility.
I hope I haven't hit a dead end.
Kim