The Ellen Deborah Ellis Papers contain correspondence 1896-1972; writings 1905-62; financial records 1896-1962; passports 1902-46; grade records 1888-1907; student papers 1897-1904; awards 1897-1905, 1960; biographical information; and photographs. The correspondence deals with her student years at Bryn Mawr, and her time as a faculty member at Mount Holyoke. The writings include articles, speeches and book reviews. The student papers contain notebooks, programs and certificates. The biographical material includes newspaper clippings and biographical sketches.