Collection: James Joyce Letters Letter ID: vol1p161a Date: 1921-04-10 Source: Letters of James Joyce. Vol. 1. Edited by Stuart Gilbert. London: Faber & Faber, 1957.
Collection: Selected Correspondence of Charles Ives Letter ID: 108 Date: 1921-04-10 Source: Tom C. Owens, ed. (2007). Selected Correspondence of Charles Ives. Berkeley: University of California Press.
Collection: Selected Correspondence of Charles Ives Letter ID: 109 Date: 1921-04-10 Source: Tom C. Owens, ed. (2007). Selected Correspondence of Charles Ives. Berkeley: University of California Press.