One of Your Slaves to J. J. Hill, Aug. 24, 1893, petition, Aug. 31, 1893, Hill to John. T. Hall, Sept. 20, 1893; for threat, S.K.O. to Hill, Nov. 16, 1893, all in Great Northern, pt. 1, 1862-1922, ser. B, Labor, r. 1, Presidential Subject File-1893-95, file 2114 L 22, D82F.