Just as a tidbit for those researching the Centralia Massacre (those killed from the train):
At least 3 of the 1st Iowa Cav soldiers on the train were guarding prisoners on their way to St. Joseph, MO. At least 3 of other members of the 1st Iowa Cav were their prisoners. They boarded the train at Mexico, MO.

Joseph H. Arnold: Guard
Charles G. Carpenter: Guard
Owen P. Gore: Guard
George W. Dilley: Prisoner (Larceny and Robbery)
Charle E. Madera: Prisoner (Larceny and Robbery)
John Russel: Prisoner (Larceny and Robbery)