My ggrandfather was George Johnston ( dob Jul 1847 )from Duns(e) in Berwickshire. He moved to London and joined the Metropolitan Police. He names his parents as William Johnston and I'm pretty certain his mother was Jane Durno. I have been able to confirm that by DNA results. What I can't find is information about William. I can't find a marriage between him and Jane. There is a 1851 census record showing
Jane Durno 65
Jane Hopkins 31
Jane Hopkins 6 months
George Johnston 2 years
I think Jane got pregnant by William Johnston but he may have died before George was born. Pretty quickly Jane gets together with a Dennis Hopkins and has Jane Hopkins. So the census shows Janes mother, with Jane Hopkins ( was Johnston nee Durno ), with Dennis Hopkins' daughter, and William Johnston's son George. I have a lot about George because of police pension records but I know nothing about William.
Any help would be gratefully received.
Gaj