aaw_045 December 20, 2018February 5, 2019 Matthew Caulkins, Web Applications Program Manager Previous Next M-66. Quercus alba Massachusetts (Taunton). Somerset Avenue. Height 75 ft., girth of trunk 15 ft., spread of branches 90 ft. Photograph by E.H. Wilson, May 17, 1924. All photographs by Ernest Henry Wilson. Copyright © President and Fellows of Harvard College, Arnold Arboretum Archives; all rights reserved.