Vice President Richard Nixon (R-CA) / UN Ambassador Henry Lodge (R-MA)
Governor Pat Brown (D-CA) / Senator Stuart Symington (D-MO)!✓
Here's a rough guess. Brown was sort of a poor man's Humphrey, but he would be able to bring the New Deal Coalition out. Similar collapse in the South because of the relative liberalism of the ticket, but no more than Kennedy lost for his Catholicism.
I doubt Brown would win Texas without LBJ on the ticket and I doubt any deep southern state would go to a Democratic ticket that doesn't feature a southerner (MO was a border state), and Brown, IIRC, was also a Catholic.
