“Mrs. Charles Ives, Composer’s Widow.” The New York Times, April 5, 1969, 27.

Schonberg, Harold C. “Music: Ozawa and the Philadelphia: Young Leader Passes First Major Test Brahms, Prokofiev and Ives are Programed.” The New York Times, March 1, 1967, 48.

Strongin, Theodore. “Ives Piano Device Sets Concert Tone: New Works are Played on Re-Tuned Instruments.” The New York Times, April 21, 1967, 48.

Willis, Thomas. “Handel and Ives Midst Yuletide Setting.” Chicago Tribune, April 24, 1967, B17.

Hart, William S. “Music for Young People.” The Sun, March 2, 1967, A14.

Porter, Cecelia H. “Mandel Plays at National Gallery.” The Washington Post and Times Herald, May 2, 1967, D11.

Kriegsman, Alan M. “Gregg Smith Singers Perform Ives’ Music with Genius.” The Washington Post and Times Herald, October 26, 1967, D23.

“Conductor Visits City for 2-Week Engagement.” Chicago Tribune, February 5, 1967, H9.

Ericson, Raymond. “Thompson Sings in Recital Hall: Young Baritone’s Debut has a Well-Chosen Program.” The New York Times, October 31, 1967, 37.

“Noted Danbury Composer is Featured by Bernstein.” The Hartford Courant, February 19, 1967, 9G.