It`s a bit sensitive, the people concerned are and have not been interested in any monetary gain.
They were more sad he was not considered their relative.
I could do some research as the adopted person seems to have kept his mother`s maiden name( well she was not married)as a middle name ,and I could do a bit , but when I mentioned that I had briefly looked into it his sister said not to bother, it really did not matter.
I have to respect that of course but I did find out something quite unintentionally when looking for census returns etc and that was that the husband in the couple who adopted him was himself adopted.I would not have expected that to be known , but maybe it was and they wished it to be kept private. Again I did respect their privacy ,and did not mention what I had accidently found out .
Just in case they did not know, it was not for me to tell them.
I have not the right to look into it further.If the present day family are satisfied then I`ll have to leave it there.
They are just not curious, for example--an old photo which was sent to me and which I thought may be of their great grandparent is still unidentified months later. They`ve only to match it with another in an old album and consult another descendant for verification, but two or three months later they`ve not got around to it. But they are such lovely people as you will see from my first post
and live in the present , unlike me always in the past! Cheerio. Viktoria.