Napton, originally known as Jonesboro, is an unincorporated community in southeastern Saline County, Missouri

Missouri

Missouri is a US state located in the Midwestern United States, bordered by Iowa, Illinois, Kentucky, Tennessee, Arkansas, Oklahoma, Kansas and Nebraska. With a 2010 population of 5,988,927, Missouri is the 18th most populous state in the nation and the fifth most populous in the Midwest. It...

, United States

United States

The United States of America is a federal constitutional republic comprising fifty states and a federal district...

. Napton is located on Missouri Supplemental Route

Missouri Supplemental Route

A supplemental route is a state secondary road in the U.S. state of Missouri, designated with letters. Supplemental routes were various roads within the state which the Missouri Department of Transportation was given in 1952 to maintain in addition to the regular routes...

 E 8 miles (12.9 km) southeast of Marshall

Marshall, Missouri

Marshall is a city in Saline County, Missouri, United States. The population was 13,065 at the 2010 census. It is the county seat of Saline County,. The Marshall Micropolitan Statistical Area consists of Saline County. It is also home to Missouri Valley College...

. It was the county seat of Saline County from 1831 to 1839. It was later renamed Napton, after Judge William B. Napton, who wrote the pro-slavery Napton Resolution in the winter of 1848-1849.

Napton once had a post office, which is now closed; mail delivery now comes from Marshall. Napton also had a bank, grist mill (the grindstone of which is now located at the entrance of the old high school), railroad station, grain elevator and several stores.