sentences:  Murdo MacKenzie
  
  Murdo MacKenzie (April 24, 1850 – May 30, 1939) was twice (1891–1901 and 1922–1937) manager of the Scots-owned Matador Land and Cattle Company, and founding president of the American Stock Growers Association, for whom he testified before congress and the Interstate Commerce Commission.His testimony led to passage of the Hepburn Act of 1906 which eased railroad fares for western shippers.