Encore information added from handwritten notations in one copy of the printed concert program and from the review published in the New York Times. The program notations seem to indicate that additional (unidentified) encores were also performed. Downes, Olin. ELISABETH RETHBERG WINS PLAUDITS." New York Times (1923-), 27 Feb. 1928, p. 16. ProQuest. Web. 11 Aug. 202.