Banker. Business and personal correspondence (1883–1951), the majority concerning Walter Ferguson’s tenure as vice president of the Exchange National Bank in Tulsa, Oklahoma; a book-length manuscript (n.d.) on the Choctaw Indians; brand books (1906–1918) of Walter Ferguson; correspondence (1902–1906) to Thompson B. Ferguson, governor of Oklahoma Territory; typescripts of annual reports (1904–1905) of Thompson B. Ferguson as governor of Oklahoma Territory to the secretary of the interior; and correspondence (1928–1942) to Lucia Loomis Ferguson concerning her syndicated newspaper column, “One Woman’s Opinion,” along with manuscripts (circa 1930–1962) and clippings (circa 1928–1942) of her column.