Dutch Elm is a disease that wiped out nearly all of the American Elm trees in North America. It's caused by the Elm Bark Beetle. There is no such thing as a Dutch Elm tree. The only Elm we have around here is Slippery Elm although some people refer to it as Piss Elm. I don't see very many Slippery Elms, but I do see a lot of Hackberry trees which look a lot like Flms and are actually related. Hackberry is good firewood, but you know what? It has those stringy things on it and is difficult to split, just like Elm. I'm not always right about identifying someone elses wood, but I definitely know what wood I have. And yes, it is Tulip Tree. Some people call it Poplar, but it's actually in the Magnolia family. You obviously know your trees. Wanna try again?