The Collaborative International Dictionary of English v.0.48:
Brakeman \Brake"man\ (br[=a]k"man), n.; pl. Brakemen (br[=a]k"men). [1913 Webster] 1. (Railroads) A man in charge of a brake or brakes. [1913 Webster] 2. (Mining) The man in charge of the winding (or hoisting) engine for a mine. [1913 Webster]WordNet (r) 3.0 (2006):
brakeman n 1: a railroad employee responsible for a train's brakes