Welcome to Union State Bank (Banks) on 301 E 15th St in Horton, Kansas. This bank is listed on Bank Map under Banks - All - Banks. You can reach us on phone. Oskaloosa Branch is a branch office of The Union State Bank Of Everest. They provide the following services: Full Service Office Location and are located at. Hosted nationally syndicated "Doug Banks Radio Show" Banks, Ernie Country doctor and longtime Mississippi state legislator Barnett, Kevin.