The meeting of two huge locomotives on May 10, 1869, of the Central Pacific and Union Pacific Railways at Promontory Point in Utah is one of the most notable events in American history. For the first time, the United States was connected by rail from coast to coast and the journey from New York to San Francico, which before would have taken many grueling months, could now be comfortably completed in less than a week. Fortunately, for all those involved in the construction of the transcontinental...