I wouldn't worry too much about Eliza/Elizabeth. The IGI has an extracted marriage in Renhold between James Shorley and Eliza Copperwheat in 1846, and then a baptism in Renhold of Martha in 1847, mother Eliza, followed by another Renhold baptism on 1848 of Elizabeth, mother Elizabeth, then back to mother Eliza for William in 1854. It's pretty clear that it's the same family.
Why do you think Elizabeth Shorley married Richard Stubbles, other than someone told you? Have you found them in any census?
In 1871 she was a servant aged 22 born Rennoll Beds in Marylebone, so that cuts down the possible marriage dates, and completely rules out the 1871 Stubbles couple that Carole found and had ruled out. But I can't find a marriage or death for her, nor can I see her in any subsequent census
David