The first run of the first train to leave St. Louis for Jefferson City was an event—a crucial step in St. Louis’ ambitions to become a stop on the fledgling transcontinental railroad. Pacific Railroad engineer Thomas O’Sullivan personally invited notables including Henry Chouteau (a descendant of one of the city’s founders), Thomas O’Flaherty (a businessman and the father of Kate Chopin) and the Rev. Artemus Bullard (pastor of the First Presbyterian Church in St. Louis).