Name: Sally central Maryland (Zone 7b) See you in the funny papers!
Persimmon might be a good choice. They are fairly common here (my county is sandy and acidic) and don't seem plagued with all the rot of peach, plum...
Pawpaw is another unusual native fruit tree. Univ Kentucky has done a lot of work on pawpaw culture. http://www.pawpaw.kysu.edu/Gro...