I asked a wood worker one time, what was elm used for. He said it made excellent hubs for wooden wagon wheels. Said there were none better and that is almost all you see as hubs. Don't know if it is true or not, just passing on what I was told. Mike is right though about it being similiar to ash. It is also an excellent place to look for spring mushrooms around the dead elm that are starting peel their bark, same as dead ash.