This group of letters was written by William Sydney Porter to his daughter Margaret between April 25, 1898, and July 24, 1901, while he was an inmate in the Ohio State Penitentiary. Margaret was never told of her father's whereabouts. The letters are mainly the chit-chat of a father to his pre-teen daughter. No covers are included with the items; two letters are undated and one is dated only "November 12." Of these three items, two are probably late 1898.