Entered from booking ledger and New York Times concert listing and review. According to the review, the concert also featured the "first performance ever of two sacred choruses by Robert Rodriguez, and the first New York performances of choruses by Robert Parris, Robert Shafer, and Russell Woollen, as well as other works by Washington area composers." "Who Makes Music and Where." New York Times (1923-), 14 June 1970, p. 108. ProQuest. Web. 5 Aug. 2025. Strongin, Theodore. "13 MADRIGAL SINGERS FROM SCHOOL HEARD." New York Times (1923-), 17 June 1970, p. 39. ProQuest. Web. 5 Aug. 2025.