Findings from a historiographic case study are reported. Qualitative data was collected from a series of interviews and cultural artifacts exploring the history of the creation of the Regis Jesuit High School, Girls Division- the first American all girls Catholic Jesuit high school. The study traces the process of how Regis Jesuit became a co-divisional campus educating both women and men in same sex classes utilizing Ignatian Strategic Planning conceptual framework that emphasizes the Jesuit concept of Magis while exploring its impact on the historical and contemporary role that women play in the Jesuit mission.