Thank you for the information. Jane Nelmes, who married Gilbert Randolph Wellington (of Lydney) and moved to Abertillery, was my maternal grandmother. I am still investigating her mother; there is a possibility that her name was Criddle.

Name: Abby Criddle
Date of Registration: Jul-Aug-Sep 1865
Registration district: Cardiff
Inferred County: Glamorgan, Monmouthshire
Volume: 11a
Page: 213