Iverson, Jennifer. “Ives Reworks Thoreau: Charles Ives’ Interpretation of Thoreau in 114 Songs and Essays before a Sonata.” Publications of the Missouri Philological Association, vol. 27 (2002): 66.
Shulman, Ivan. “Symphony no. 2 by Charles Ives: An Historic Review and Consideration of Performance Practice.” M.M. thesis, California State University at Long Beach, 2008.
Hwang, Mi K. “Elements of Jazz Style in Twentieth-Century American Organ Works: Selected Works of Charles Ives, William Albright, and William Bolcom.” D.M.A. thesis, University of Arizona, 2009.