Thanks for your reply. I was looking into this family for someone else and much of what you mention, I seem to recall.
I found some additional info on the Arnold family at Darford Library and believe some info on the IGI on the Parker family ( the Parker = Bull Marriage ) . From what I cabn remember John Arnold ends uop in Durham by the 1901 Census.
WE had no luck tracing a George Arnold.
The chap whose line this is is a Gordon Arnold and I believe he is still on Genes Reunited. Twins run in the family !.