aaw_010 December 20, 2018February 5, 2019 Matthew Caulkins, Web Applications Program Manager Previous Next M-10. Ulmus americana Massachusetts (Hingham). Trunk of the Crushing elm. Photograph by E.H. Wilson, November 11, 1923. All photographs by Ernest Henry Wilson. Copyright © President and Fellows of Harvard College, Arnold Arboretum Archives; all rights reserved.