Moore, David W. “John Kirkpatrick: ‘Concord’ Revisited.” The American Record Guide 35, no. 7 (December 1968): 546-547.

Kirkpatrick, John. Liner notes for “The ‘Concord’ Sonata, by Charles Ives.” Columbia MS 7192, 1968, 33.3 RPM.

Helm, Everett. “Another Concord Sonata.” Musical America 82, no. 6 (June 1962): 27-28.

Taubman, Howard. “Records: Ives Sonata. Columbia Issues 'Concord' Piano Work Played by John Kirkpatrick.” The New York Times, July 18, 1948, sec. 2, 5.

Newman, William S. Review of “Charles Ives: First Sonata for Piano.” Notes 12, no. 2 (March 1955): 331.

Garvelmann, Donald. “Immersed in Ives.” The American Record Guide 40, no. 9 (August 1977): 16-19.

Cohn, Arthur. “Alan Mandel Plays All Twenty-Seven of the Piano Works of Ives.” The American Record Guide 35 no. 7 (March 1969): 548-549.

Harrison, Lou. “On Ives's First Piano Sonata.” In Charles E. Ives First Sonata For Piano. New York, NY: Peer International Corporation, 1954.

Roy, Klaus George. “Copland Harvard Talk.” The Christian Science Monitor, March 20, 1952, 4.

Glanville-Hicks, Peggy. “William Masselos: Pianist Presents Ives Sonata at Y.M.HA. Hall.” New York Herald Tribune, February 18, 1949, 18.