As a boy in the early 1950s, Mike McLaughlin was a regular stowaway riding switch engines back and forth in Seattle, Washington. By the time he was in high school, he was hand-firing steam engines as an unofficial crew member. Obsessed with trains and destined for a life along the tracks, he started by digging ditches as a gandy and ended as a railroad and transportation consultant, but he never completely relinquished his shovel. His career spanned...