Sr. Mariann Guiniven, IHM is a native of Philadelphia. She attended Little Flower Catholic High School for Girls, Immaculata University, Villanova University and Neumann University. Sister Mariann taught in elementary and secondary schools in the Philadelphia area. She was a Formation Director for the congregation and a member of the leadership team. Sister Mariann ministered in the Tribunal Office in the Hartford diocese. She is a certified spiritual director and has given retreats and presentations on various topics.