By the beginning of the Civil War, the New York Herald, founded in 1835, had become one of the largest and most influential newspapers in the country. The Herald sent correspondents throughout the North to report on the war. Among them, Thomas W. Knox was assigned to report on the war in Missouri, based in St. Louis. In the early days of the war there was much action to report on in Missouri. Knox was an ideal choice for this position and had a particular talent and perception for his assignment. He was able to get close to the Union leaders as they struggled to build a war machine to cope with secessionists in their midst and, at the same time, he was able to tell human interest stories about ordinary people and the effect of the war on them. He accompanied many of the expeditions and filed first-hand reports on the scenery, movements, and actions. These are his reports as they appeared in the New York Herald. They offer a different, more extensive view than that usually seen in books on the early part of the war in Missouri.