Johnson, Marc E. “Charles Ives’s (Utopian, Pragmatist, Nostalgic, Progressive, Romantic, Modernist) Yankee Realism.” American Music 20.2 (Summer 2002): 188-233.
Nicholls, David. “‘The Unanswered Question of Her Son’s Biography’: New Thoughts on Mollie Ives.” Journal of the Society for American Music 5.1 (February 2011): 95-111.
Block, Geoffrey, and J. Peter Burkholder, eds. “Contemporary Views of Ives and His Music: Profiles 1932-1955.” In Charles Ives and His World, 363-442. Princeton, NJ: Princeton University Press, 1996.
Charles Ives and Henry David Thoreau: “A transcendental tune of Concord.” In Ives Studies, edited by Philip Lambert. Cambridge, UK: Cambridge University Press, 1997.