Unfortunately, I don't have much to go on at the moment.
My gt gt grandmother's maiden name was Mary Jones (don't know if Mary was spelled another way - that's how it appears on censuses etc) & her father was William Jones. You can see how difficult it is with the names can't you. On most censuses it says she was born in Cardigan, Cardiganshire except for one that says she was born Stepside Cardigan. She was born about 1825. She only spoke Welsh when she married my gt gt grandfather & I think she was a Non-conformist, possibly chapel. There's a possiblity that she's related to a Winifred (sp?), Jones & an Elizabeth Jones who also came from Cardigan. They all ended up in a little village called Leckwith, just outside Cardiff, where I grew up. I wondered if it's possible her family worked at Stepside & maybe even lived nearby. I've done some basic searching but it's not easy with so little to go on.