Legion of Mary Centenary 2021! Founded Sept. 7, 1921, in Ireland by Servant of God Frank Duff, the Legion of Mary has spread throughout the world. Join its members in celebrating their 100-year anniversary with a Mass of Thanksgiving, offered by Bishop Joe Vásquez on Tuesday, Sept. 7, at 6:00pm, at Saint Mary Cathedral, 203 E. 10th St., Austin 78701. The Legion of Mary invites you to share with them this special time of joy and thanksgiving!