A letter from Billie Hamlet of the NZP to Mrs. Jerry D. Rider regarding Smokey Bear receiving his peanut butter sandwich, August 15, 1974, by Hamlet, Sybil E, August 15, 1974, Smithsonian Archives - History Div, A letter from Billie Hamlet, Information Officer, National Zoological Park to Mrs. Jerry D. Rider, Little Rock, Arkansas, regarding Smokey Bear receiving his peanut butter sandwich..