United States Senator Philetus Sawyer worked for Barnett at the sawmill.
In 1851 and 1857, Barnett served in the Wisconsin Assembly while living in Fond du Lac.
Barnett was a member of the Whig and Free Soil Party.
Barlett died from pneumonia at his son's home in Neenah, Wisconsin.
This article about a Republican Party member of the Wisconsin State Assembly born in the 1800s is a stub.