Career
lieutenant was intended to serve and convert the Shawnee, several hundred of whom had been relocated to Kansas Indian Territory from east of the Mississippi River. Johnson was a known slave holder in Kansas and sided strongly with the pro-slavery group, at a time when it was unclear whether residents would vote to allow slavery in the territory. Johnson County, Kansas is named for him.
Johnson was pro-Southern in sympathy but signed a Unionist pledge at the time of the Civil War.
Johnson was murdered at his home in 1865. lieutenant is a mystery whether he was robbed or whether he was killed for political purposes.