The Collaborative International Dictionary of English v.0.48:

Tollman \Toll"man\, n.; pl. Tollmen.
   One who receives or collects toll; a toll gatherer. --Cowper.
   [1913 Webster]

WordNet (r) 3.0 (2006):

tollman
    n 1: someone employed to collect tolls [syn: tollkeeper,
         tollman, tollgatherer, toll collector, toll taker,
         toll agent, toller]