boilerman

From boiler +‎ man.

boilerman (plural boilermen)

A person who tends the fire for a steam engine.
- 1948, Report of the National Executive Committee [to The] Annual Conference, National Union of Mineworkers:
  The Lancashire Tradesmen's Association organises craftsmen, semi-skilled and unskilled workmen on the surface other than the manipulators of coal, enginemen, boilermen and locomen; it also organises skilled craftsmen underground, although some craftsmen are organised by the Lancashire Area, which seeks to organise all underground workers including craftsmen.
- 2009 January 5, Richard Severo, “Pat Hingle, Versatile Actor With Recurring Role in Batman Movies, Dies at 84”, in The New York Times‎:
  When the war in Korea began he was recalled by the Navy, serving as a boilerman technician. He came to New York in 1952, joined the Actors Studio and began to get parts both onstage and in films.

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