Sacking of Osceola

The Sacking of Osceola was a Kansas Jayhawker attack to move pro-slavery Southerners at Osceola, Missouri on September 23, 1861. It was not approved by the Union military. The attack happened from an informal group of anti-slavery Kansas "Jayhawkers".Spurgeon, Ian (2009), Man of Douglas, man of Lincoln: the political odyssey of James Henry Lane, University of Missouri Press, pp. 185–88 The town of 2,077 people was plundered and burned to the ground. 200 slaves were freed and nine local citizens were court-martialed and killed.https://www2.census.gov/library/publications/decennial/1860/population/1860a-23.pdf It was led by James H. Lane.

Aftermath
Lane's raid created hatred that led to William Quantrill's raid on Lawrence, Kansas. That raid led to four counties of western Missouri under General Order No. 11 to be evacuated.

References

Other websites
Civilwarstlouis.com history 

Category:1861 in the United States
Category:American Civil War battles
Category:Massacres of the American Civil War
Category:19th century in Missouri