The only information i recieved on Harrison was his name.
As for his son Joseph his wife is Hester Godsey with whom he had 3 children;

Clinton M. Combs 1932-
Betty Jean Combs(Michael) 1936-2006
Geraldine Jo Combs(Addison) 1937-

I an no longer in contact with the person who gave me this information and any avalible family members have no other information.