Try the Trees forum?

Here are a few interesting, less commonly planted small trees.

We have the serviceberry ('Autumn Brilliance') which has a nice show of fleecy white flowers in spring, plus fall foliage color (it gets up to 20-25 feet in height eventually.

More help available here.

I planted a tree called japanese snowbell. There's also carolina silverbell, which is the native variety of that tree. I live just up the road from you in Allentown. I also considered crabapple, hornbeam or muslewood, and a tree called "cornelian cherry" which is not in the cherry tree family, it's a type of dogwood. The scientific name for that tree is Cornus mas. If I had a shadier site I would have considered Stewartia. Another one that was recommended to me was Sweetbay magnolia. If I had it to do over again I'd go with a small, sweet smelling magnolia. There are varieties like that out there but I don't know what they are. Again, try the tree forum.

Oh I was such a dumbell, I didn't read the "native" part. OK, forget the japanese snowbell! Here's the revised list:

Amelanchier (that's the best!)
Native crabapple (sorry, don't know the scientific name)
Sweetbay magnolia
Musclewood/American hornbeam, Carpinus carolinia
Carolina Silverbell, Halesia carolina
Fringe tree, Chionanthus virginica
Dogwood (there's a pretty one called "pagoda dogwood" but this will only work if it's a shady location. Cornus mas is not a native tree.)
Witch hazel - some are more tree-like than others
American hazelnut - Corylus americana

Hey, these folks at Edge of the Woods Native Plant Nursery are great and worth the trip out from NJ if it's not too far. I put a link to their Web site below. It has plant lists, including trees. Their stock is small in size though, but mighty hardy!

Here is a link that might be useful: Edge of the Woods Nursery

Oxydendron arboreum, "Sourwood" is supposed to be a beautiful tree and is well liked on the Trees forum. It likes somewhat wet soil. I adore Acer pensylvanicum, or "Striped maple" as it is sometimes called. It needs some shade though. Striped refers to the distinctive white stripes contrasting with the green bark of the young trees. Wish I didn't have a baking sun southern exposure back yard, I'd plant Acer pensylvanicum in a nano-second. It's also called "moosewood" as a common name. Hard to come by, don't know how hard it is to grow if well sited.

From USDA Forest Service on Acer pensylvanicaum:
"It grows best on shaded, cool northern slopes of upland valleys where it is common on welldrained sandy loams in small forest openings . . ."

I would be tempted to try one of the hardy figs in your climate. You can prune to desired height. Very attractive large leaves for shade and tasty fruit. A warm location is best. I wonder if there are others growing them in your area? There would be a risk of having to head it back though. The fig below was protected from the outdoors over winter here in North Jersey. The pic shows one of three branches.

Your best choice for fruit would probably be an apple or a pear. Disease resistant varieties. They can grow out to that height and have nice blooms and fruit. They are very hardy and long living on seedling rootstock. As far as a peach, I planted a Contender. It requires the most chill hours for bloom, helping to avoid spring frosts.

Here is a link that might be useful: {{gwi:33545}}

Native tree ideas:
Amelanchier canadensis
Cercis canadensis
Cornus florida
Acer rubrum
Nyssa sylvatica
Celtis occidentalis
Fraxinus americana

Here is a link that might be useful: country gardens nursery