He was not adopted out of his original family
he lived with mother and his maternal grandparents after she died...
As BO would say: “Prove it!” /s
We only know what we’ve been told.
So it is with BO: He only knows what he's been told. We cannot legally witness our own birth.
EX: Friend in high school. She had always gone by Lori X. School records were in that name. She had siblings who went by the same X last name. Her parents loved her and doted on her as they did all their children. She even resembled one of the siblings having same hair color etc.
We grew up went to separate colleges. She comes back in life as an adult. Needed her BC and low and behold she was NOT her parents child. They hadn't even adopted her. Seems an unwed “cousin” had died in child birth and the newly weds took the baby home from the hospital with family blessing. No questions asked by anyone, since they graduated from university, married and moved to new town in same week. Families kept secrets back then, for whatever reasons. They just never got around to making it legal and so she had a name change and then togs years to sort out the legal paper work. She had done nothing wrong, others were complacent in the “cover up” protecting her from the “truth”.