found: His Steamboat in a cornfield, 1986: CIP t.p. (John Hartford)
found: LC data base, 1/30/86 (hdg.: Hartford, John)
found: Worth, F.L. Elvis, 1992: p. 85 (Hartford, John; b. 12-30-1937, New York City; singer and composer)
found: New York Times, June 6, 2001 (John Hartford, composer, 63; d. June 4, 2001, Nashville, Tenn.)
found: Wikipedia, Jan. 2, 2009 (John Cowan Hartford; b. John Harford ("he would change his name to Hartford later in life at the behest of Chet Atkins"), Dec. 30, 1937, New York City; d. June 4, 2001, Nashville, Tenn.; an American folk, country and bluegrass composer and musician known for his mastery of the fiddle and banjo, as well as for his witty lyrics, unique vocal style, and extensive knowledge of Mississippi River lore)