A neighbor of mine when I was a teenager served in France during the Great War as a brakeman and engineer on the trench railways. He said he was scared at how fast they were expected to run on often very poor track. He spent his entire life in transportation of some sort. He was a waterboy for a construction gang building the town's trolley line, he drove canal boat mules, was a brakeman on the PRR, served in the Army Transport Corps, went back to the PRR, then was a motorman on the town's trolley line. When the buses came, he became a bus driver, which he continued until his retirement. I wish I had recorded his stories.