Miller Courthouse stood southwest near Red River as the county seat of Old Miller County in Arkansas Territory from 1820 to 1828. The first post office there was established on Sept. 7, 1824, with J. H. Fowler as postmaster. Claiborne Wright, a prominent settlement leader, served as sheriff and as a member of the territorial council, and his place was the site of the first court held in Old Miller County before a courthouse was built nearby. The county was abolished in Oct. 1828 after the land was ceded to the Choctaw Nation, and white settlers removed to make way for Choctaws coming from Mississippi. The courthouse and post office burned in Nov. 1828.