Thank you all for your help / suggestions.
Sadly virtually all of my family are now gone so I'm really going on half remembered stories etc to pull things together!
I do know Eliza married James around 1893 and they had a number of children...Elizabeth, James, Emily, Esther, Ephraim and William (William was my grandfather).
He always blamed his father for the death of his mother - I don't know if this was real or imagined and wouldn't talk about her, he'd get really upset.
I'm so curious about her....