Board of Trustees

Aaron Renenger, Chair

TCS Parent

Aaron lives with his wife, Christina, and their three children, in McLean, Virginia. They have been long-time members of the Trinity community, having enrolled their oldest, now a sophomore in college, at Trinity as a kindergartner. They attend Alexandria Presbyterian Church, where Aaron is an elder overseeing the adult education ministry.  Aaron is an attorney and seminarian in his spare time.  

Kristen Short, Vice-Chair

Managing Partner
Advance Strategies

Kristen and her husband, Marc, live in Arlington, Virginia. They have three children — a son in the US Navy, another son in college, and a daughter at Trinity. All are active members of The Falls Church Anglican, where Kristen currently serves as senior warden (chair) of the vestry (board). As an experienced development consultant, Kristen enjoys helping leaders and organizations achieve mission-driven success.

Mark Whitaker, Esq., Treasurer

Partner
DLA Piper LLP (US)

Mark and his wife, Kristen, have five children: one in the Upper School and four Trinity graduates (2015, 2018, 2021, and 2023). The Whitakers attend The Falls Church Anglican. Mark is a corporate and finance partner at DLA Piper LLP (US), where he regularly represents domestic and international professional sports franchises as well as lenders in financings involving sports properties. He has previously served on the Board of Trustees as Chair, Vice-Chair, and Treasurer.

Julie Phillips, Secretary

Trinity Parent

Julie and her husband, Dirk, have been a part of the Trinity community since 2009. They have two children currently attending Trinity and two Trinity graduates. Julie has found joy in being a parent volunteer, PTO board member, mentor mom, and grade-level representative for many of her years at Trinity. Before becoming a mom, Julie received her master’s degree in education from the University of Virginia and served as an elementary school classroom teacher for five years. Julie and her family worship at McLean Presbyterian Church, where the children are active members of the children’s and youth ministries, Julie serves as a mentor mom for the MOPS ministry, and the family has been involved with the Capital Fellows Program both as a host family and a mentor for many years.

Jamie Adams

Managing Partner
The Carlyle Group

Jamie is a Managing Director focused on US Real Estate at The Carlyle Group. He and his wife, Erin, attend McLean Presbyterian Church and live in Vienna, Virginia. They have two daughters, Emily and Avery, who are at Trinity in Grades 6 and 7.

Wallace L. Butler

Commercial and Government Transaction Attorney. 

 Wallace and his wife attend Agape Embassy Ministries and live in Centreville, VA.  They have three children - two are current students at Trinity in Grades 5 and 7.

Steven Chung

Deputy Co-Chair
Hughes Hubbard & Reed LLP

Nicole Hoplin

President
Hoplin Jackson Charitable Advisors

Nicole and her husband, Eric, have three sons at TCS.  She is the co-founder and president of Hoplin Jackson Charitable Advisors.  An expert in philanthropy, Nicole helps clients nationwide create more impact with their charitable giving and, in so doing, makes giving away wealth as joyful and fulfilling as creating it. She is the author of Funding Fathers: The Unsung Heroes of the Conservative Movement and Ten Secrets of Successful Giving.  The Hoplins are active members of Good Shepherd Lutheran Church in Herndon. 

Casey Mattox

Vice President for Legal and Judicial Strategy
Americans for Prosperity

Casey is Vice President of Legal and Judicial Strategy for Americans for Prosperity and Senior Fellow for Free Speech at Stand Together Trust. Prior to his current roles, he litigated free speech and religious liberty cases for The Alliance Defending Freedom and the Christian Legal Society. He and his wife Samantha have two daughters and a son at Trinity. They worship with Fairfax Bible Church.

Santiago Sedaca

Chief Impact Officer
Wise Responder

Santiago has worked at the intersection of business and international development for 25 years, managing strategy and development programs in more than 40 countries. He now serves as Chief Impact Officer at Wise Responder. He studied at Gordon College and later received his Masters degree at Georgetown University, where he met his wife, Nicole. They have three children, one recent TCS graduate and two attending Trinity. They worship at Restoration Anglican Church, where Santiago has served as Warden. He sits on the Boards of Gordon College and ENLACE, a Christian relief and development agency based out of Central America. 

Matt Thomas, Ed.D 

Head of School, CEO
Trinity Christian School

Matt has served in education for over 25 years in Christian schools, Christian higher education, seminaries, the Christian non-profit sector, and pastoral ministry. He has devoted his career to serving and strengthening Christian educational institutions for the flourishing of students, faculty, and staff.  

Matt and his wife Beth have two daughters who attend Trinity and one Trinity alumnus.

Thomas Yates, Esq.

Partner
Yates Campbell & Hoeg LLP

Tom and his wife, Kim, have two children who graduated from Trinity.  Tom and his family are active members of The Falls Church Anglican, where he has held various leadership positions, including serving on the Vestry and being the current Chair of the Finance Committee. Professionally, he is a partner at Yates Campbell LLP, where his law practice concentrates on trusts and estates law.

Johnny Yun

Senior Vice President
Yun Wealth Management at RBC

Johnny and his wife, Lina, have three children, all students at Trinity. The Yun family resides in Vienna and attends church at Cornerstone Chapel in Leesburg.  Johnny is a proud member of C12, an avid Trinity Volleyball fan, and loves to fish and golf.