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Our Board of Directors

Leading the Peacemaker Center to support the community since 2000.

John Clark - Chair

John currently serves as the Chairman of the Board and has been connected with The Peacemaker Center since its inception. He prepared the 501(c)3 non-profit status application and assisted with tax filings, budgeting and other fiscal matters throughout the early years. In 2005, he joined the Board as Treasurer. John is an attorney and a CPA. He has served as the CFO of a non-profit organization for many years and also works with various non-profits as a financial consultant. He and his wife, author Mindy Starns Clark, live in Eagleville with their two daughters and attend Fairview Village Church.

Barbara Yamarick - Secretary

Barbara Yamarick is serving as the Secretary of the Board. A lifelong resident of Chester County, Barbara and her husband David are members of Windsor Baptist Church where they serve in the Mercy Ministry. After earning a B.S. in  Behavioral Science from York College of PA, Barbara's professional career in real estate spanned over 30 years in various executive positions. She retired in 2003 from Brandywine Realty Trust as the Senior Vice President of Tenant Services.

Dr Thomas Whiteman - Treasurer

Tom is a psychologist who joined our board in 2019. Tom has founded more than nine companies over the past 20 years, which include Life Counseling Services, Rehab After Work, The Light Program, Magnolia Creek Treatment Center, and Legacy Collectibles.  He earned his masters' degree in Counseling from West Chester University and his Ph.D. in Psychology from Bryn Mawr College. Tom is the author or co-author of thirteen books which include Victim of Love, Stress Test, Adult ADHD, Divorce Recovery, Single Parenting, Marriage Mender and Your Kids and Divorce.  

Judy Reid - Executive Director and Member

Judy has worked with the Board of Directors to lead The Peacemaker Center since its inception in 2000. Judy works from a family systems framework that includes understanding and changing patterns in one's life. She has worked with children and adults with learning disabilities and in the foster care and behavioral health systems. In addition to trauma, Judy works with couples and family relationships, people who have mood disorders and anxiety disorders and families with disruptive or addictive behaviors. Judy supervises the clinical staff and Interns which helps to maintain the high standard of clinical excellence.


Scott Edwards - Director of Operations and Member

Scott joined The Peacemaker Center staff in 2006. Currently Scott is the Director of Operations while continuing to see clients in the Kennett Square and Downingtown offices. Scott has a wide variety of experience serving as a helping professional over the past 25 years. He has held positions both in church ministries and community agencies including Bereavement Counselor, Pastoral Counselor, Assistant, Associate, and Senior Pastor and as a Clinical Supervisor in Hospice. Scott adheres to an eclectic theoretical approach with an emphasis on person centered and cognitive restructuring. Scott enjoys the front row seat to seeing lives change for the better.


Marc Lucenius - Member

Marc is the Pastor at Project 938 in West Chester, Pennsylvania.  He received a BS in Business Administration from the University of Delaware, an MDiv from Westminster Theological Seminary and a Doctor of Ministry from Biblical Theological Seminary. These influences have given him a passion for the local church and the power of the gospel to change lives. He has been in pastoral ministry for close to two decades in this region serving at Church of the Saviour in Wayne, and most recently at Willowdale Chapel in Kennett Square. 

Marc has lived his entire life in the Philly Metro region, never living more than 45 minutes from the South Philly sports complex, paying a visit whenever possible. He loves being a husband and a father and, with his wife Kathleen, he is raising three kids, Kelsey, Hannah and Samuel.

Peter Schiesser - Member

Peter serves as the Treasurer of the Board. He graduated from Plymouth Whitemarsh High School in the class of 1982. He earned his degree in Finance at the University of Maryland in 1986. Peter is employed by Liberty Mutual Insurance Company as a Surety Bond Underwriter. He was a Board Member of Access Services from 1997 to 2003. Peter is single, enjoys golf, exercise and travel and attends Harvest Baptist Chapel in King of Prussia, PA.

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