Our People

Our Clergy

The Rev. Dr. Koshy Mathews
The Rev. Dr. Koshy Mathews

The Rev. Dr. Kosky Mathews, our rector, was born in India and raised in the Mar Thoma tradition of the Eastern Orthodox Church. After coming to the United States in the early 1970s, he received his Master of Divinity degree from Princeton Theological Seminary, Master of Education from Harvard Graduate School of Education and Doctor of Ministry from Episcopal Divinity School, Cambridge, Massachusetts. He and his wife Susan have two grown children: Ranjit, who with his wife Johanna and grandson Dhruv, in December 2017 became Rector of St. James Episcopal Church in New London CT. and Manju, a Social Worker, lives in Danville, CA and serves as the Director of Behavioral Health Services at Axis Community Health in San Francisco Area. Prior to coming here, Fr. Mathews served as interim priest at Epiphany Parish, Walpole and St. Chrysostom, Wollaston, and as associate rector at Christ Church, Needham in the Massachusetts diocese. He accepted the call to serve as rector of St. Peter’s Church Phoenixville in January 2006.


Deacon Joe Dietz
Deacon Joe Dietz

Deacon Joe Dietz was ordained to the vocational diaconate in October 1994. He served at St. Peter’s for nearly 5 years under the Rev. Thomas Wand and came back for a few years as deacon assistant under the Rev. Marie Swayze and the Rev. Robert Miller. Joe is currently serving St. Peter’s as deacon assistant since 2011. He assists with the Sunday services, leads Sunday Bible Study and serves on the Food Pantry Committee.




Our Staff

Derek Maninfior - Organist and Choirmaster
Derek Maninfior – Organist and Choirmaster

We are blessed to have Derek Maninfior as our new Director of Music. He joined us in July 2018 as our organist and choirmaster, replacing Karen Greene, who remains a parish member.  Derek leads both the adult choir and children’s “Treble” choir, which had both experienced strong growth in the past 2 years under Karen’s leadership.  Choir music is an essential part of St. Peter’s inspiring and uplifting services.

Derek comes to us with extensive training and experience in piano performance, teaching, rehearsing, accompanying, and leading the musical aspects of worship. He previously served as Director of Music at The Presbyterian Church of Chatham Township, New Jersey and as principal organist at St. Charles Borromeo Church in Charleston, Illinois, where he provided music for worship services and led the church choirs. He has also served as accompanist and associate instructor of piano at the Indiana University Jacobs School of Music, as well as collaborative pianist at 3 Eastern Illinois University and associate counselor and coach at the Indiana University Piano Academy.

In 2015, Derek was first prize winner of the Bradshaw & Buono Piano Competition and also performed at Carnegie Hall. In addition to other honors in prior years, Derek was named Gilmore Fellow at the Gilmore Piano Festival in Kalamazoo, Michigan in 2014 and was awarded the Artistic Excellence Fellowship at Indiana University in 2012. Derek received his Bachelor of Music in Piano Performance at Eastern Illinois University and his Master of Music in Piano Performance at Indiana University. Derek lives in Philadelphia, Pennsylvania, with his wife Elizabeth.

Special thanks to our Music Director Search Committee: Marty Bloem, Shelly Brennfleck, Ron Druckenmiller, Emma Martz, Karen Martz, and Catherine Wenger for their help and dedication to finding Derek as our new Director of Music.


Judy Dougherty - Parish Administrator
Judy Dougherty – Parish Administrator

Judy has been the Parish Administrator since March 1996. She is the mother of 3 and grandmother of 5, is an avid gardener, enjoys reading books by many authors and spending time at the New Jersey shore.







Lola Barranco - Sexton
Lola Barranco – Sexton








Our Vestry

Judi Hans - Senior Warden
Judi Hans – Senior Warden

Since moving to Phoenixville in the late 1970’s, Saint Peter’s Church has been a huge part of my life. My husband, Don and I were married here, my children were baptized here, and my heart has been here since the early days. I have made many friends as I continue on my spiritual journey, and I anticipate making many more supportive relationships. I have been a part of several ministries over the years, but my main focus has been in the area of New Member Ministry and the Community Lunch program.





Jan Wier - Junior Warden
Jan Wier – Junior Warden

Jan is head of the Children’s Ministry, including Godly Play and Children’s Chapel.  An accomplished painter and artist, Jan brings colorful artistry and creativity to everything she touches.









Frank Rothenberger - Accounting Warden
Frank Rothenberger – Accounting Warden

“My wife, Caitlin, and I knew almost immediately that St. Peter’s would be our faith home after we visited in the fall of 2013. The members make everyone feel welcome and it is a community that each member is proud to be a part of. I was approached early on to help out as treasurer and then ultimately as a member of Vestry. This has been an overwhelmingly rewarding and positive experience.

I have grown as a person and have developed meaningful relationships with other members of St. Peter’s. I chose to participate in this manner because I want to help ensure that St. Peter’s is around in Phoenixville for years and years to come.

St. Peter’s is able to make such an impact on its members and the greater community because of the countless hours that members put into various ministries and I appreciate being a small part of this. It is important to me that future generations, including my children, can have the same rewarding experience that I have been blessed with. St. Peter’s continues to grow by providing a safe place for all with open doors.”


Karen Martz - Vestry Member
Karen Martz – Vestry Member

“I’ve been a member of St. Peter’s since 2002. My husband and I were drawn to the church initially because of its location and the beauty of the sanctuary. As we continued to attend services we became more sure that when we had a family we would want to raise our children in this church. We felt a sense of community and loved the idea that this church would be part of the “village” supporting us in our journey of raising our children.”

The church offers programs from the very young (Children’s Chapel) up through elementary (Godly Play) and then a Youth Group for the teenagers. Karen’s family also participates actively in the music program with the Treble Choir, Adult Choir and Karen serves as head of the Music Committee and runs the Music @ St. Peter’s Concert Series. “St. Peter’s is a community that welcomes everyone and provides so much for anyone who walks through the door.”



Vincent Giancaterino - Vestry Member
Vincent Giancaterino – Vestry Member

Vince is a Eucharistic minister, former choir member, and hosts the annual autumn church picnic at The Copperfield Inn, in Limerick.  This September, he is hosting a St. Peter’s Columbarium fundraiser.







Ray Foerster - Vestry Member
Ray Foerster – Vestry Member

Ray is a leader of the Property Committee and Men’s Group which both plan and execute numerous building and maintenance projects around the church, including landscaping, painting, and other space improvements.








Shelly Brennfleck - Vestry Member
Shelly Brennfleck – Vestry Member

I have been a member of Saint Peter’s since 2012, along with my husband Dave and children William and Ella. Having been raised in the Roman Catholic Church, we had been searching for a spiritual community that better matched our values and felt like a spiritual home. After visiting several local churches, Saint Peter’s was recommended to us.

We immediately felt welcomed and we connected to the open and inclusive mission of the church and have been active members ever since our first visit. I feel a spiritual fulfillment as a member of the Saint Peter’s community that I have not previously experienced.

In addition to serving on Vestry, I am also a member of Altar Guild and Discernment Committee, a Godly Play Door Person and a Lector. Dave and the kids are also actively involved in many different ministries but we all feel that we get much more than we give when it comes to Saint Peter’s.


Henry Young - Vestry Member
Henry Young – Vestry Member









Mona Chylack - Clerk of the Vestry
Mona Chylack – Clerk of the Vestry

During the past few years, Mona has very much enjoyed getting to know the wonderful people of St. Peter’s Church. She finds the church welcoming to everyone as it reaches out to the community, both locally and globally, through its many missions. In addition to serving as the Clerk of the Vestry, she has had the good fortune to work with a great group of people on the Stewardship Committee and to serve as a door person to the children’s Godly Play program. At home she enjoys her role as mother to her daughter and son-in-law, as Marmie to four grandchildren, and as caregiver to dogs, chickens, a cat, and a horse.