When Mark Twain’s daughter Susie wrote a letter to Santa Claus, her father wrote back, signing Santa’s name. Charming and heartwarming, this version of the short letter includes humorous descriptions of Santa’s efforts to deliver the requested toys to the Twain household, as well as instructions to meet Santa at an appointed time outside for items that can’t fit down the chimney. Written in 1875, Twain’s daughter would tragically die of spinal meningitis some 20 years later.