Autograph letters signed (4) : Chapel Hill, North Carolina, to Edward Wagenknecht, 1929-1933.

Saying that because [Bernard] Shaw is preparing a collected edition of his writings, he would not be amenable to a new project; explaining Shaw's single-mindedness when working on a project; noting that "Mr. Shaw doesn't answer letters; he doesn't` correspond,' the way most people do. He writes letters or dictates letters when he gets `good and ready' "; explaining why Shaw would be averse to allowing a compilation of his quotations to be published: "As a Socialist, he has the most pronounced views on the subject of copyright"; and advising Wagenknecht to see Shaw personally if he has any hope of going forward with his proposed project; thanking him for sending a copy of his review of Henderson's Bernard Shaw: Playboy and Prophet(1932); sending a copy of The Carolina Play-Book, June 1933; saying he is glad Wagenknecht will be doing a book on Mark Twain, whom Henderson knew well, and noting that he plans another book on Twain which will be on a larger scale than the "brief & breathless book I wrote just after his death"[Mark Twain, 1911]; appreciating Wagenknecht's scholarly courtesy in contacting him about his work on Mark Twain, contrasting it with the behavior of St. John G. Ervine (St. John Greer Ervine, 1883-1971), who was "so angry with me for making any book by him about Shaw superfluous" that he omitted Henderson's eight books on Shaw from his bibliography for Encyclopedia Britannica.