Thomas Curtis Clarke,
The American Railway: Its Construction…
“ The passenger-train conductor has in many respects the most difficult position in the railroad ranks. He should be a first-class freight conductor and a polished gentleman to boot. But in his long apprenticeship on a freight train he has very likely been learning how not to fulfil the additional requirements of a passenger conductorship. In that service he could be uncouth and even boorish, and still fill his position tolerably well; now he feels the need of a life-time of tuition in dealing with the diverse phases of human nature met with on a passenger train. ”
