On October 29, 1879, the post office at Cross was discontinued and Postmaster Fred A. Brown was moved to work at the newly-established Kellerton Post Office. Service started in the postmaster’s home and changed locations several times before 1931, when then-Postmaster Smiley B. Hedges purchased the former Ringgold County Savings Bank building for use as the post office. The present brick Kellerton Post Office facility was built in and dedicated in the fall of 1961.