The Collaborative International Dictionary of English v.0.48:

Dispatcher \Dis*patch"er\, n.
   One who dispatches.
   [1913 Webster]

WordNet (r) 3.0 (2006):

dispatcher
    n 1: the official who signals the beginning of a race or
         competition [syn: starter, dispatcher]
    2: employee of a transportation company who controls the
       departures of vehicles according to weather conditions and in
       the interest of efficient service

Moby Thesaurus II by Grady Ward, 1.0:

23 Moby Thesaurus words for "dispatcher":
   baggage man, bakehead, brakeman, brakie, butcher, conductor,
   fireman, footplate man, guard, lineman, porter, railroad man,
   railroader, redcap, smoke agent, stationmaster, stoker, switchman,
   trainboy, trainman, trainmaster, yardman, yardmaster