The duty of memorializing the Confederate dead was a major activity for Southerners who were devoted to the Lost Cause, and chapters of the UDC played a central role in performing it. The UDC was especially influential across the South in the early 20th century, where its main role was to preserve and uphold the memory of Confederate veterans, especially the husbands, sons, fathers, and brothers who died in the war. Its long-term impact was to promote the Lost Cause image of the antebellum plantation South as an idealized society which was crushed by the forces of Yankee modernization, which also undermined traditional gender roles. In Missouri, a border state, the UDC was active in setting up its own system of memorials.