Letter from composer Henry Cowell to Arnold Shaw, letting Shaw know that "I'll get at the writing of the introductory remar[k]s pronto."

Letter from composer Henry Cowell to Frances Schillinger, starting that "I stand to do all I can for the [Schillinger] System, of course."

Letter from composer Henry Cowell to Frances Schillinger: "I'll do all the work I can for the SYSTEM on the West coast."

Letter from composer Henry Cowell to Frances Schillinger, regretfully declining her offer to "administer the exploitation program for Joseph's system…I am devoted to the Schillinger System, and feel that anything I can do ...