Term: brakeman (railroads)
a train crewmember who performs railcar and track management; often a single job description along with switchman ("brakeman/switchman"). Originally a brakeman performed manual activation of brakes on railroad cars before the advent of the air brake.
View pictures relating to railroads at Wisconsin Historical Images.
[Source: "Rail terminology" at Wikipedia (http://en.wikipedia.org/wiki/Rail_terminology)]