I hope that last post didn't come across the wrong way. I just had to laugh that here I am thinking it might be a Chinese Elm and I had to be told that it was actually an elm native to my own soil.
I read something interesting, though, about American Elms. It's somewhat well known among arbor enthusiasts that American elm trees have suffered from elm disease for awhile now, causing their populations and longevity to severely dwindle, but something I read yesterday suggested that some American Elms might be different. Apparently, they were long thought to all be tetraploids, but as many as 20% might be diploids, and the diploids might fare better against the dutch elm disease. It might be old news to most of you, but it was news to me, and happy news at that!
Here's where I found part of my info: https://www.ars.usda.gov/news-...
(I think I found the 20% statistic initially on Wikipedia.)