aaw_016 December 20, 2018February 5, 2019 Matthew Caulkins, Web Applications Program Manager Previous Next M-21. Quercus alba Massachusetts (Dedham) The Avery oak, a full grown tree in 1636. Owned by the Dedham Historical Society. Photograph by E.H. Wilson, December 8, 1923. All photographs by Ernest Henry Wilson. Copyright © President and Fellows of Harvard College, Arnold Arboretum Archives; all rights reserved.