Vernon County, Missouri: History
The county was developed by European Americans for agriculture and is still mostly rural.
Vernon County suffered considerable damage during the American Civil War. Guerrillas and insurgents had waged raids against Union troops and carried out personal vendettas in the county. On May 23, 1863, Union Army soldiers burned the county seat of Nevada, along with the courthouse, in retaliation. The present courthouse was completed in 1907.
Vernon County was one of four Missouri counties that were wholly depopulated by Union General Thomas Ewing Jr.'s General Order No. 11 (1863), which ordered the people evacuated to end support for Confederate guerrillas operating in the area. Most of the residents were not allowed to return to their homes until after the Civil War ended in May 1865.