Hi Frances!
You are right, I already know about William who married Isabella Berry in 1902, though I didn't know she was from Cork so that's good new information to add to my tree! As you say he was my great grand father John's brother, the youngest in the family by the looks of it!
I am in contact with a descendant of another of the brothers, Hugh Allison, who was born in 1868 I think. So there are a lot of us burrowing about trying to investigate where the family came from!!
As you say about the names being passed down, from family to family,like John/William/Hugh, it must have caused confusion, so many related all with children of roughly the same names. However I miss it too! I am probably from the last generation in which you were routinely called after your grandparents, so in my family we have a John, a Jane (me), and a Mary, all names after the g/p's, unfortunately my youngest sister was a girl, so was called Ellen after an Aunt instead!! Now nobody does this!!
As you said they all lived in and around Rumford or Craigs (next to St Anthonys, the old church) and like you say, they were mostly pit workers, though I guess it was a bit rural too, and I have noticed quite a few agricultural workers too!
Anyway nice to be in contact with you. I am in Lanarkshire, not very far as the crow flies, from Rumford, are you in Scotland too??
Jane