From "A Dictionary of Occupational Terms"
Crossing Keeper, level crossing keeper, gatekeeper, gateman, level crossing man; in charge of a level crossing on a railway line, opening and closing gates by hand worked mechanism, or by hand, for the passage of trains, or for passage of road vehicles and (sometimes) pedestrians; sometimes also lights, trims and cleans lamps on crossing gates; performs duties of crossing policeman, flag man, signal gateman, or of gatekeeper and pointsman.
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