Entered from booking ledger and New York Times concert listing and review. "PROGRAMS THIS WEEK CONCERT AND OPERA." New York Times (1923-Current file), Apr 30 1961, p. 1. ProQuest. Web. 23 Oct. 2019. "MISS SEAMAN SINGS: SOPRANO DEVOTES PROGRAM TO SELECTIONS IN GERMAN." New York Times (1923-Current file), May 03 1961, p. 33. ProQuest. Web. 24 Oct. 2019.