 His sculptures are included in the collections of Boston's Museum of Fine Arts, the Metropolitan Museum, the Farnsworth Art Museum in Rockland Maine, the Concord Art Association, and the Smithsonian American Art Museum in DC.His own favorite piece, the heroic size Egyptian Head, was displayed in the New York World's Fair in 1939.On July 4, 1942, Allen unveiled a monument of George Washington in Fall River, Massachusetts which was reported to be "of such artistic merit and patriotic intent as to attract nation-wide interest."