you should go to the state adoption coordinator where the adoption took place.
if his mother died at birth, this would also be limited to a few people but i don’t know the restrictions for death records. you would have to ask the state vital records about that. be prepared to give them a county and state, maybe a city, and the date.
i don’t know if cecil dickson and charlotte pollard are the adopting parents.
i don’t know how you got the information that the mother passed away when he was born or when his biological father passed away.
sorry, i don’t know who your brother is nor which post is the one he wrote.
i do not keep track of the inquiries on this messageboard. i only reply giving what information can be found in public records available online.
suzanne hamlet shatto