May 21 Wednesday – In Riverdale, N.Y. Sam wrote to Franklin G. Whitmore (only the envelope survives) [MTP].
Sam inscribed a copy of A Double-Barrelled Detective Story with his signature and the date on a blank preliminary leaf [PBA Galleries auction 24 May 2007 Lot 248].
Sam’s notebook entry lists ideas for the “50 years after” tale, never finshed [NB 45 TS 13].