Includes typed and handwritten incoming letters from Charles Angoff, Raymond Clapper, Fred C. Kelly, Hendrik Willem van Loon, George M. Cohan, Alice Longworth, Glady Swarthout Chapman, and Charles Stringer. Also includes letters written to Mr. Boni from Nathalia Crane, to C. B. [Nicoll], Nathalia Crane from Lesley Frost, and from Courtney Ryley Cooper to Odd [O.O. McIntyre].