Oh my Gosh!!!! My mom was born Sohn Soo Jin in Taegu in 1964. The cousins from a Sohn brother are all Jin....! Taegu is a smaller city and practically all the Sohns are related in some way. I am going to ask my mom to see if one of the aunts or uncles could have had a baby in 1966. Hope to contact you again!
Soo Sohn Rayford (mom)