aaw_033 December 20, 2018February 5, 2019 Matthew Caulkins, Web Applications Program Manager Previous Next M-53. Ulmus americana Massachusetts (Saugus). Roby elm on Main Street. Height 75 ft., girth of trunk 15ft., spread of branches 100 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.