Very cool, Mark. The National Park Service has been making a concerted effort to bring the battlefield to its original state. That means removing things that were not there in 1863, such as buildings and trees on property the Park controls and replacing things that were, like replanting the Peach Orchard and Wheat Field and placing period accurate fencing.When I did an inventory on the National Battlefield in Gettysburg, I only had a small section. In the white oak group, I think there was mostly Q. alba and a few Burr oak. I also think there was a stink about a Sawtooth oak in another section that did not belong (non-native). Argument over removing it, but it was planted as a commemorative to someone...
When did you do your inventory? It may have been part of this effort.