Morgan, Robert P. “Rewriting Music History: Second Thoughts on Ives and Varèse.” Musical Newsletter 3, no. 1 (January 1973): 3-12, and 3, no. 2 (April 1973): 15-23, 28.
Davidson, Colleen. “Winston Churchill and Charles Ives: The Progressive Experience in Literature and Song.” Student Musicologists at Minnesota 3 (1968-69): 168-94, and 4 (1970-71): 154-80.