Ray in all probability had it from Johnny Handle et. al, and he will have had it from Lloyd directly and / or Come all ye bold miners.
I'm sure she would sing Delaval and Seghill, since she only lives a few miles from them.

The fact that it was collected in Co. Durham is probably not remarkable - miners in previous generations were a mobile lot, relocating up to twice a year in the old bonding system, as anyone who's done any family history research in this area will testify.

The miners of Delaval would have suffered with the decline of the Delaval family fortunes (post 1815), though most could have moved to new pits. They were also involved in the New Hartley disaster which happened only a mile from the village. So its not surprising if they were noted for aggression to the imported blacklegs.

(Though IIRC, the Cornish tin miners some owners imported mainly worked in Durham pits)

As a complete aside Seaton Delaval now supports the best ice cream shop in the area, always having queues at the door in hot weather.
Not as good as those in NZ, though, Little Robyn!

Paws