Lyon, Fremont, and Blair just about succeeded in driving Missouri from the Union. The state convention called to consider seccesion actually voted to remain in the Union! The politicos in St. Louis declared martial law (illegally by the way and without Federal congressional or Lincoln authority) and proceeded to run the dully elected state government including the convention that just voted to remain in the Union, into exile. What I lot of folks miss is that the civil war in Missouri wasn't fought between the confederacy and the Union until Elk Horn Tavern/Pea Ridge. Before that it was the Union vs the Missouri State Guard, a goodly number of which were not slave owners and were for staying in the Union. Thus began an insurgency in the state unlike anywhere else in the country because many residents really did feel like the state was being invaded and the government overthrown by a limited number of politcal despots from St. Louis with the blessings eventually of Lincoln. (Who IMHO was manipulated into a lose-lose postition he did not handle well.)
Its a bit of history thats often left out.....for obvious reasons.
John R