Are these dead? From what I can tell they are American elm who suffered dutch elm disease. Could I use the wood for anything if so? https://www.allforgardening.com/1015183/are-these-dead-from-what-i-can-tell-they-are-american-elm-who-suffered-dutch-elm-disease-could-i-use-the-wood-for-anything-if-so/ https://media.vive.im/media_attachments/files/113/143/276/640/181/820/original/dc758affdf1a81f9.jpg