I purchased this 3 gallon mail-order tree from Nearly Native Nursery. The leaf shape and winged twigs indicate that it is likely Ulmus alata, although the upper surfaces of the leaves are rougher than the guide books suggest. Planted it on October 18th 2020.
Winged Elm leaf detail.
By October 2021, the Winged Elm had sprouted more spectacular wings on its trunk and branches!