My mum was given up for adoption at birth in the 1940s. In the 1970s she tried to trace her mum via social services and a social worker located her. Her mum said to the social worker that she had thought of her often but couldn’t meet her and didn’t want to now tell her husband and son. My mum has passed away now but every so often I get out the little envelope of research she did on her adoption. Should I let sleeping dogs lie or could I trace her half brother? I feel that the secret was one his mother wanted to keep but on the other hand who would judge her now, and I am desperate to know some blood relatives. I have none really apart from my own children.