I'm not sure how I missed this. A little more detail from Jorge Bolet on Godowsky. He was speaking in 1983 to Carola Grindea for her book Great pianists and pedagogues. (The "lessons" as such were around 1932/33 in New York City.) Further information from this website: ‘Jorge’s scores of these pieces bore Godowsky’s markings in red crayon—the daunting “Passacaglia,” based on themes from Schubert’s “Unfinished” symphony; the “Fledermaus” and “Künstlerleben” symphonic metamo

Mid-1930s photo from the Curtis Institute website

"Jorge had in mind to play Godowsky's Johann Strauss Künstlerleben at his forthcoming 75th birthday tour as grande finale. Jorge played this piece on several occasions for me telling me: this is a work in progress, no! a lot of work in progress! He had played a lot of Godowsky for me when I was staying with him in Bloomington. We went to Butler University where he kept his scores and could use his Baldwin SD 10 (in his apartment he had a small grand which he never touched).

Jorge Bolet with Mrs Mary Louise Curtis Bok and David Saperton ( Diario de la Marina , 28 December 1934) The Chattanooga Daily Times (14.10.1938) reported that Mrs Bok has said that all she has done and put into the Curtis Institute is justified in this one student.