Sorry want to delete.

I am looking for a half brother of mine who would have been born prior to my parents marriage in 1973.I know nothing about his mother or his name or date of birth etc.My fathers name is David Lockood Edwards.I don't believe my father had any contact.

Think someone would possibly be able to help with just a little more detail. This would need to be the mothers name and then birth options could start to be narrowed down.... I am assuming that this is something you can't or don't want to ask your dad ?

It would be awkward as he doesn't know I know.

It would be awkward as he doesn't know I know.
Pm someone who can research it with all your information