There is a mystery tree in next door neighbor’s yard. Owner collected seeds many many years ago from upstate (??) and now it is huge – at least 4.5 ft diameter. I’ve been thru 7 books and can’t ID it!
your tree is a southern hackberry, or sometimes called sugarberry, Celtis laevigata, in the Elm family. The fruits are very sought after by birds. It is a native tree.
Dr. Steven Hill, Botanist, SCNPS