John,
Thank you so much for finding the references about the bank at Osceola. I had been searching all afternoon for them!
In addition, I would like to say that Osceola may not have been as much of a "backwoods hick town" as Mr. Ross would like to think. At the time, Osceola was a supply point for much of Southwest Missouri, being the head of navigation on the Osage River. It was also home to Missouri's Senator Waldo P. Johnson, who opposed the war and tried to get legislation passed that would create peaceful settlement of differences between the North and South before the war ever started. Osceola was about the same size as Kansas City at the time, boasting a population between two and three thousand, many retail and wholesale establishments, and a large number of trades-people.

The references in past posts to the "drumhead court-martial" comes from Monaghan's book "The Civil War on the Western Border". General Henry W. Halleck, a Union Commander for the Department of Missouri,in a letter to the Hon. E.M. Stanton, Secretary of War wrote,"The Kansas Jayhawkers, or robbers, who were organized under the auspices of Senator James H. Lane wear the uniform of and, it is believed, receive pay from the United States. Their principal occupation for the last six months seems to have been the stealing of Negroes, the robbing of homes, and burning of barns, grain, and forage. The evidence of their crimes are unquestionable. They have not heretofore been under my orders. I will now keep them out of Missouri or have them shot." (can be found in The Official Records: War of the Rebellion) Halleck ordered General Pope to drive the Jayhawkers out of the state, and if they resisted to disarm them and hold them prisoners. Halleck, referring to Lane's band, said,"They are no better than a band of robbers. They cross the line, rob, steal, plunder, and burn whatever they can lay their hands upon. They disgrace the name and uniform of the American soldiers and are driving good Union men into the ranks of the secession army." When Halleck complained to President Linclon, the President protected Lane time and again. Lane must have been pretty bad for other UNION commanders to speak of him the way they did!