 Porter's sculptures include the Robert Louis Stevenson monument at Portsmouth Square in San Francisco, and the Memorial Arch (1919) on Saratoga-Los Gatos Road in Saratoga, California.Some of Porter's stained-glass designs can be found at St Mary's Episcopal Church in Pacific Grove, California, and in San Francisco at the Swedenborgian Church (1895, Bernard Maybeck), and the Le Petit Trianon mansion (1904).Other stained-glass windows he designed are at churches in Monterey, Stockton, San Mateo and Coronado.