Durand-Ruel Galleries (New York, N.Y.). Ten American painters: the first exhibition, catalogue of the pictures, 1898. Thomas Wilmer Dewing and Dewing family papers, 1876-1963. Archives of American Art, Smithsonian Institution.
John Henry Twachtman. John H. Twachtman list of works., circa 1900. Charles Henry Hart autograph collection, 1731-1918. Archives of American Art, Smithsonian Institution.
Gertrude Käsebier. John H. Twachtman with his family on their front porch in Greenwich, Conn., ca. 1899. Mary Fanton Roberts papers, 1880-1956. Archives of American Art, Smithsonian Institution.