Mary Jean is a Dominican Sister of Springfield, Illinois. She holds a Master of Arts in Pastoral Studies and a Certificate in Preaching from Aquinas Institute of Theology in St. Louis.
She has been promoter of preaching, national convener of the U.S. Dominican Promoters of Preaching, and vice-president of the Catholic Coalition on Preaching. She sits on the board of the Parable Conference.
Having completed two terms as Prioress General of the Springfield Dominicans, she now ministers as parish life coordinator at St. Katharine Drexel Parish in Springfield, Illinois.