Hi Tim.I'm not related to this family. Having said that :
#1 - There's nothing wrong with being a mutt!It makes life interesting, don't you think?
#2 - This might be a marriage record for your Dad's parents:
Arkansas Marriage Index, 1933-1939 about Homer Paxton Name: Homer Paxton Gender: Male County: Mississippi, Arkansas Spouse: Inez Stewart License Date: 14 Apr 1934 Certificate Number: 19502 Volume Number: 0002