Scott, Charles M. river pilot creator mixed material monographic eng 4 ALS (1883 June 30) written by William H. Hatch to Harrison Matson, ALS (1883 November 13) written by John J. O'Neill to Matson, ALS (1883 December 14) written by Matson to Martin Linn Clardy, and petition (undated) to the U.S. Congress seeking a pension for Charles M. Scott, inventor of a signal system used by Mississippi river boat pilots. Open to research. Collection material in English. Forms part of: Miscellaneous Manuscripts collection. Clardy, Martin Linn 1844-1914 Correspondence Hatch, William H. (William Henry) 1833-1896 Correspondence Harrison, Matson Correspondence O'Neill, John J. (John Joseph) 1846-1896 Correspondence United States. Congress. Pensions Pilots and pilotage Mississippi River River pilots mm 79001702 Open to research. DLC 791113 20260227111637.0 mm 79001702