Beginning in the years before the US Civil War, African Americans fled or emigrated from the South to northern and western states and territories. Descendants of these emigrants occasionally had the opportunity to play baseball for predominantly white town teams and minor league clubs prior to 1946 under circumstances documented in states such as Kansas and California. Those same opportunities were virtually nonexistent in states where slavery had been legal at the outset of the Civil War. A few instances of integrated baseball teams involved in intercity competition in Missouri, a border state that remained in the Union, have been documented between 1886 to 1901. All of the teams identified so far represented cities and towns in northwestern Missouri, near the borders of Kansas, Nebraska, and Iowa. The stories of these teams and Black ballplayers are described from available information published in contemporary newspapers.