Portrait Sculpture Portrait group, Arnold Ronnebeck's studio, c1930s or 1940s.Georgia O'Keeffe, bronze, 1924. Denver University, Denver, CO.Marsden Hartley, bronze, 1912. Beinecke Rare Book and Manuscript Library, Yale University, New Haven, CT.Marsden Hartley, the Soul, bronze, 1923. Beinecke Rare Book and Manuscript Library, Yale University, New Haven, CT.Hans Sidow, father of German poet, Max Sidow, plaster, c1921. Private collection in Hamburg, Germany.Sitter, date and location unknown.German Poet Stefan George. c1921, location unknown.Pierre Coalfleet aka Frank Davison, bronze, 1925. Private collection.Pierre Coalfleet aka Frank Davison, bronze, 1925. Private collection.Melchior Lechtor, date and location unknown.Head of Hartley 1923, Mask of the Soul of Marsden Hartley, 1923. Beinecke Rare Book and Manuscript Library, Yale University, New Haven, CT.Eleanore Baxter, plaster, 1926 at Kirkland Museum of Fine and Decorative Art, Denver, CO.Marsden Hartley, 1923. Frederick Weisman Museum, Minneapolis, Minnesota.Charles Demuth, plaster, 1912. Presumed lost.Portrait of Everett Marcy, painted plaster, 1924. Private Collection.Ananda Coomaraswarmy, plaster, 1929, Kirkland Museum of Fine and Decorate Art, Denver, CO.Portrait of Jean Cohn, painted plaster, c1930s. Private Collection.Carl Sandburg, plaster, c1930s, Hirschorn Museum and Sculpture Garden, Washington, DC.George Antheil, 1923. Private collection.Self Portrait, painted plaster, 1947. Location: Beinecke Rare Book & Manuscript Library, New Haven, CT.Portrait of a Young Girl, painted plaster, c1930s. Private Collection.Portrait of my Son, painted plaster, 1930. Private Collection.