Thank you jorose and stanmapstone. The name Eleanor Morgan (wife to Francis) rings a bell from research some years ago. After a little hunting it seems she married Joshua Morgan (b Wales) in 1883 and her maiden name was Rutherford. She lived in Stockton on Tees then. Joshua must have died/divorced? and Eleanor married my gg uncle Francis in 1896 in South Shields.
The name Lancelot Plunkton (possible husband to adoptee Ethel) made me smile - it sounds so plum-in-mouth, though from a brief search it seems he did not fare well in life, at least for a while.
I think I shall have to order a birth cert or two for Ethel Graham to establish her parenthood. I'm only really interested if she's blood-related to a Robertson, although the nosey-parker part of me would like to know
Thank you again,
Finta