I'm listening to the 1943 recording of Charles Ives playing Charles Ives, in particular, The Alcotts. What I wonder is whether by this time was Ives getting any recognition for his music? I know Lou Harrison conducted the premiere of his Third Symphony but that was several years later (and it went on to win the Pulitzer Prize).
Project Gutenberg copy of his Essays before a Sonata Wikipedia on Piano Sonata No. 2 and noting that Elliott Carter reviewed its second performance, at Town Hall in NYC in 1939.