MRCC Staff

Our Team at MRCC

We could not run Marianist Retreat and Conference Center without this wonderful team. If you see them when you are at the retreat center, please do not hesitate to ask for help.

Jennifer Duncan

Executive Director

Jennifer Duncan joined the MRCC leadership team in 2021. Jen has been married to her husband Joe for 30+ years, raised 3 fantastic children all while teaching elementary, middle school, and high school within the St. Louis Archdiocese. She has also served as the Director of Public Relations and as Campus Minister at Bishop DuBourg High School. Jen was led here after falling in love with MRCC, its mission and the Marianist Charisms during her more than 20 years of visits as both a retreatant and retreat director. She enjoys the outdoors, trying to camp, fly fish, and hike whenever possible. Jen has 2 primary roles: overseeing the daily operations at MRCC, and guiding others to Him through His mother, Mary. To reach Jennifer, please email her at

Paul Masek

Program Director

Paul Masek has been married to his beautiful wife Lisa for over 30 years, they have four incredible adult children, and for fun he loves hunting, fishing, camping, hiking, and telling dad jokes. He is the funniest person he knows, though his wife says he doesn’t know enough people (so maybe she is funnier)! His history with MRCC goes all the way back to 1981 when he attended a retreat here as a high school senior at Mercy High School. He brings over 30 years of retreat ministry experience with young people of all ages, and has received his certificate in Spiritual Direction from the Archdiocese of St. Louis’ Catholic Renewal Center. Paul believes that God always has MORE in store for us! You can email Paul at or you can call or text him at 314.608.5447

Shanon Waller

Hospitality Director

Shanon joined our leadership team as Hospitality Director in Spring of 2024, and we couldn’t be more thrilled! Formerly the business office director at The Grande at Chesterfield, Shanon brings a well-rounded experience, a love for hospitality, and a servant’s heart. Shanon is married to her husband Dale and has 3 wonderful adult children and 3 grandchildren. She loves spending time with her family and close friends. She also loves arts and crafts, the outdoors, camping, fishing, hiking and swimming. 

Contact her at:

Stephanie Girse

Hospitality Assistant

Stephanie recently joined our hospitality team as our Hospitality Assistant. Her warm smile, retreat experience, and careful attention to detail makes a perfect fit at MRCC! We are so grateful for her “yes”! 

Contact her at:

About MRCC

Our Staff Members, Board of Directors, Volunteers, and countless others have contributed enormously to the retreat center we know today. Find out how these contributions have added up!