Letter to Emanuel Libman, December 25, 1916
Letter to Edward Clark Streeter, January, 1917
Letter to D. Bryson Delavan, January 6, 1917
Letter to Henry Barton Jacobs, January 20, 1917
Letter, 30 January 1872
Letter, 4 June 1870
Letter, 15 June 1870
Letter, 30 November 1871
Letter, 3 January 1908