Slightly more success with one of the other ones - I now have Amos Robinson Gibson's wife's surname, she was a Tallentire. So two of J's great-great-great-grandmothers were Tallentires. I found the marriage for Amos & Margaret and I found a probably birth for her too, so I need to order those. Then I can confirm that the family I've found in 1851 & 1841 is indeed hers. And as they are in Forest & Frith, I know the Bishops' Transcripts are available (and a very quick look found one of her probable older sibling's baptism). So that should be productive once I get the certificates to confirm it :)
And then I spent all evening till gone midnight shooting zombies :D We had a dreadful time with server problems tho - all got disconned from several, then some people's l4d updated & they couldn't get back in. But eventually we all got the same version of the game & all got on a server & it went pretty well (tho the beer induced incompetance started kicking in later on in my case ;) ). Nearly made it to the finale in Death Toll & I reckon we'd've got there if we'd not spent so much time earlier faffing about.