Abstract: This research examines how white hereditary organizations use historical markers in the Midwest—specifically Kansas, Nebraska, and Missouri—to shape cultural memory and assert territorial control. Since the early 1900s, lineage organizations such as the United Daughters of the Confederacy and the Daughters of the American Revolution have influenced public memory by promoting the Lost Cause narrative and Manifest Destiny in historical markers. Their impact extends beyond commemoration into citizenship, immigration, and public education, embedding white supremacist and colonial ideologies into broader public discourse. The Midwest offers valuable insights into the intersections of racial cultural memory and territory, as the U.S. government acquired the region for the expansion of chattel slavery and settler colonialism. By inscribing settler trails, glorifying white settlers, extending the Lost Cause beyond the South, and defending racist iconography, these hereditary organizations actively construct and maintain a vision of a white nation through cultural memory.