« Reply #5 on: Monday 11 June 07 22:08 BST (UK) »
Could it be something to do with the copperworks? Most of the men seem to be employed there - company housing?
Other than that, I can think of an MB in the area Mynyddbach(not far from Clase), but not PB.
Clutching at straws here.

Cornwall: Allen, Bevan, Bosisto, Carnpezzack, Donithorn, Huddy, James, Retallack, Russell, Vincent, Yeoman
Cards: Thomas (Llanbadarn Fawr)
Glam: Bowler, Cram, Galloway, James, Thomas, Watkins
Lincs: Coupland, Cram
Mon: Cram, Gwyn, John, Philpot, Smart, Watkins
Pembs: Edwards (St. Dogmael's)
Yorks: Airey, Bowler, Elliott, Hare, Hewitt, Kellett, Kemp, Stephenson, Tebb