Is it possible that his ssn would be listed on a long form of my mom's birth certificate or was it to early for that being done (1947 we're talking about here)? I just need something concrete to nail this thing down. My grandma never spoke of him and my great grandma only knew a couple of things. My mom only knew his name because it was on checks or money orders he would send sometimes and my grandma sent my mom to the store to cash them. This is such a mystery and I want to figure it out!