Sr. Sara Butler, MSBT

Sister Sara Butler, M.S.B.T., S.T.L., Ph.D., is Professor Emerita of Dogmatic Theology at the University of St. Mary of the Lake, Mundelein, IL and past president of the Academy for Catholic Theology. She served two terms on the Vatican’s International Theological Commission, was a consultant to the U.S. Bishops’ Doctrine Committee for 14 years, and is currently a consultant to the Pontifical Council for Promoting the New Evangelization. Sr. Sara has represented the Church in national and international ecumenical dialogues and has devoted her research to questions it addresses: the ordination of women, sacraments, ecclesiology, Christology, and Mariology. She taught seminarians for 24 years at Mundelein Seminary (Chicago) and St. Joseph’s Seminary (New York) and has published over 60 scholarly articles and The Catholic Priesthood and Women: A Guide to the Teaching of the Church (Chicago: Hillenbrand, 2007). Sr. Sara is currently director for the New Evangelization at the Mother Boniface Spirituality Center and adjunct professor at St. Charles Borromeo Seminary. She spends two to three weeks each semester at Mundelein Seminary. Sr. Sara may be reached via phone at 267-350-1833.

Laura Endara-Mantilla, MA

Laura Endara-Mantilla, MA, Director of Hispanic Ministry, was born in Colombia and raised in Ecuador before moving to the United States. She received a Bachelor’s Degree in Business Management and Marketing from Wharton School University of Pennsylvania and a Master’s Degree in Theology from Boston College. She has been working with the Hispanic community for over 10 years, and she teaches Theology for the Hispanic Ministry at the Archdiocese of Philadelphia. She directs retreats, provides talks, offers Bible Studies, facilitates youth, young adult, & family events, and leads mornings reflections. She has been married for over 30 years and has four children and three grandchildren.

O 7 MaryKay 10 (1)

Sr. Mary Kay McDonald, MSBT

Joanne Nesbitt

Joanne Nesbitt has been a lay employee of the Missionary Servants of the Most Blessed Trinity for twenty-five years in various roles and is currently the Administrative Assistant for the Mother Boniface Spirituality Center. Joanne also serves as the Retreat Coordinator organizing the event logistics and handling contracts, payments and invoicing. She has been married for over 30 years.  She has four children and ten grandchildren.  Joanne and her family live in NE Philadelphia. Joanne can be reached at 267.350.1831 or



Sr. Geraldine Whelan, MSBT

Sr. Geraldine Whelan is a MSBT originally from New Jersey. Sister has guided the center for the past nine years after being missioned in Alabama and other sites. Sr. Gerry continues to work with the lay staff at the Spirituality Center to incorporate the charism in our daily work. She uses her creative gifts to make the center beautiful. Sr. Gerry can be reached at 267.350.1830.

Warning: Unknown: write failed: No space left on device (28) in Unknown on line 0

Warning: Unknown: Failed to write session data (files). Please verify that the current setting of session.save_path is correct (/tmp) in Unknown on line 0