I have only just registered on this site, and have been reading this most interesting thread. You may be interested to know that Rober Graham, a son of Alexander Graham and agnes Tidman, married Georgina Nichol on 25th February 1870 in Canonbie.
My interest is through Georgina Nichol, who was the illegitimate daughter of Ann Scott of Hollows, Canonbie, and William Nichol. Ann Scott's parents, George Scott (blacksmith of Hollows) and Ann Hogg were my gt. gt. gt. grandparents.
The 1871 census shows Robert and Georgina living at Rownaburn, Canonbie, with their daughter Ann aged 4 months. Robert was a coal miner. In 1881 they had 4 children, Ann, Agnes, Mary and Jane.
I hope this might be of interest to you.
Regards
G