Unfortunately, I don't have his ss#. The family lost track of him after the divorce - after that, he is a mystery. The only post-divorce thing I was able to connect with confidence was the 1940 census record. Basically, the only period I have information for him is between 1928-1940. The only reason I know he was born in PA and is a WW1 vet and has parents born in Wales are from his 1930 census.
Seems like sort of a lost cause at this point with the limited information.