This is a wonderful posting and has solved a mystery which has puzzled me for years.
One branch of our family came north from Cornwall in the 1860s and settled in Murton, Co. Durham. The men had all been tin miners and came to work at the local colliery. In fact an area of Murton was dubbed Cornwall. Even now its nickname remains and all the streets are named after places in Cornwall.
They mystery which this posting has solved is that when Richard Raymond, the head of the family, died, his widow remarried - a chap called Stephens who had also been born in Cornwall. They moved away from Murton and the 1881 census shows the family living 11 Kyo Lane, Kyo. I believe Kyo Lane is only a stones throw from Annfield Place (Plain). They must have heard about this "Cornwall" and moved to be near possible friends.
Its amazing, you wait eight years and another mystery is solved. Thank you so much and can I congratulate you on a lovely link.
Kind regards and happy hunting. Linda from Murton.