Papers of Howe, including family, personal, and professional correspondence; bills and receipts; photographs, itineraries, and brochures of his numerous American and European trips; four diaries for the years 1901, 1905, 1909, 1910; sermons, scripture readings, and other materials related to his ministry; addresses and writings; Howe-Barber genealogical materials, including galley proofs for his biography JEDIAH BARBER.