Clergy & Staff


The Rev. Benjamin B. Maddison

Ben was born in Philadelphia, but his childhood was spent in South Jersey, first in West Deptford, then settling into his hometown of Voorhees, New Jersey.

After earning a B.A. magna cum laude in American History at Rutgers University-Camden, Ben worked in retail and consumer banking with Citizens Bank for over five years. In that time, Ben also worked as an instructor at the Kaizer School of Art, youth leader at Grace Episcopal Church in Haddonfield, and as a preloader and Safety Coordinator at the United Parcel Service.

He received his Master of Divinity from Virginia Theological Seminary in 2015, graduating with honors. His honors thesis, "The Five Mark of Mission and Missio Dei: Four Practices for Engagement," examined practical ways to identify and participate with God's mission in local contexts. 

Before coming to Holy Trinity, he served as a curate to St. Alban's Episcopal Church in Waco, Texas. Ben also has written for the Mockingbird blog and magazine, as well as for Episcopal Digital Network.

(Left to Right) Rufio, Ashley, Ben, and Roxy

(Left to Right) Rufio, Ashley, Ben, and Roxy

Ben's wife, Ashley, is also a South Jersey native, calling Kirkwood home, and holds a B.A in Psychology from Drexel University in Philadelphia. Ashley has worked as therapeutic support staff in a residential program for children with severe autism, as an ACT intensive case manager for adults with severe and persistent mental illness in Washington D.C., and as a service coordinator for individuals with developmental disabilities in Waco, Texas. Currently she is pursuing a J.D. from Rutgers Law School, focusing on advocacy for people with disabilities. Married in 2011, Ben and Ashley also have two Great Danes, Roxy and Rufio.

Contact Ben.


Mrs. Margie MacWilliams
Organist & Choirmaster

Margie is organist and choir director for our church.  She describes herself as your basic “local musician".  She teaches lessons in her home, offering instruction for piano, guitar, voice and clarinet.  

Margie also plays for various local events, including graduations, school musical productions, weddings, art shows, etc.

Contact Margie. Or give her a call.



Mrs. Cassandra Flynn
Parish Administrator

Cassandra has been the parish administrator at Holy Trinity since Advent of 2018. She comes to us as a life-long Episcopalian with a rich faith, and an eagerness to serve the church in this capacity. You may have seen her and her family at our services before, as she is a good friend of Ashley Maddison from her time at Grace in Haddonfield. 

Cassandra is a lifelong New Jersey native who currently resides in Westmont with her husband, Jim, two daughters, Miriam (2) and Genevieve (6 months), and pit-bull, Chickadee (13). You may have previously seen her around the diocese as a member of Grace Episcopal Church in Haddonfield. When not at church Cassandra is a registered nurse.

Cassandra’s primary work includes preparing bulletin and other publications, office and administrative work, and assistance to our Rector, Ben Maddison.

Contact Cassandra. Or call the church at 856.468.0295.