J. David Baker, The Postal History of Indiana (Louisville: Leonard H. Hartman, Philatelic Bibliopole), 1976, p. 987. The information noted below was extracted by Randi Richardson. Mt. Liberty: established June 17, 1856; closed October 25, 1875; reopened May 10, 1877; closed again October 15, 1932 John Hawerth-6-17-1856 John F. Bright-12-15-1864 John Clark-6-18-1875 Zadoc Hagerman-6-10-1877 Harvey A. Patterson-2-3-1879 Enos Clark-7-9-1885 Charles M. Patterson-4-22-1889