Phil. chestnut oaks are not chestnut trees, they are oak trees. For you info the University of New England and another University in NY state are working to restore the American chestnit tree in the US. A friend of mine is working with the university and my sportsman's club has about 7 trees that have been cross polinated with pollen from native chestnut trees that survived the blight and there are a grove of thes trees on a property that are abot 10 inches or more in diameter. The nuts from these trees and others around the countey are planted and the trees that gro are cross polinated back and forth until they have what can be considered an American chestnut tree. From what I have read they are almost to that point.