This collection consists of materials relating to the life and work of Thelma L. O’Brien, an employee of Cone Mills’ Print Works plant who worked to encourage unionization there. The most notable items in the collection are three copies of a script for a radio address she gave in that effort, five years of contracts between the Textile Workers Union of America and Cone Mills, and several letters that provide examples of the mill pushing back against the union. Researchers interested in Cone Mills, local unionization efforts, or the perspective of an average mill worker who supported the union may find this collection useful.