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Budiansky, Stephen. “Ives, Diabetes, and His ‘Exhausted Vein’ of Composition.” American Music 31.1 (Spring 2013): 1-25.

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.

Van Aver, Philip. “Untitled (Drawing).” Parnassus: Poetry In Review 3/2 (Spring/Summer 1975): 294.

Charles Ives and Henry David Thoreau: “A transcendental tune of Concord.” In Ives Studies, edited by Philip Lambert. Cambridge, UK: Cambridge University Press, 1997.

Shirley, Wayne D. Preface. In Charles E. Ives, The Fourth of July: Third Movement of A Symphony: New England Holidays, iii--vii. Charles Ives Society Critical Edition. Milwaukee, WI: Associated Music Publishers, 1992.

Kirkpatrick, John. “Editor’s Notes.” In Charles Ives, Study No. 21: Some South--Paw Pitching! for Piano, 7-12. Bryn Mawr, PA: Mercury Music Corporation, 1975.

Johnson, Timothy A. “Chromatic Quotations of Diatonic Tunes in Songs of Charles Ives.” Music Theory Spectrum 18 (1996): 236-2-61.