The Columbiettes is an organization of Catholic women working in cooperation with the Knights of Columbus. Founded on March 2, 1939, by Margaret Mary J. Mangan, who became its first Supreme President, we dedicate ourselves to doing God’s work on earth, promoting unity through Christ’s love for each human being, and inspiring others through our zeal to serve God based on our foundational principles of Faith, Hope, and Charity. Membership in our organization is open to all Catholic women 18 years old or older.