aaw_035 December 20, 2018February 5, 2019 Matthew Caulkins, Web Applications Program Manager Previous Next M-55. Ulmus americana Massachusetts (Saugus). Trunk of Roby elm on Main Street. Girth 15 ft. Photograph by E.H. Wilson, April 12, 1924. All photographs by Ernest Henry Wilson. Copyright © President and Fellows of Harvard College, Arnold Arboretum Archives; all rights reserved.