Plumb, Charles S. (Charles Sumner), 1860-1939, "Plumb, Chas. S. Letter to Ward, Henry A. (1883-02-06).", AW23 Ward (Henry Augustus) Papers (Rare Books, Special Collections and Preservation, River Campus Libraries, University of Rochester), Ward Project, accessed March 14th, 2025, https://wardproject.org/items/show/15386
