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Radnor Middle School is led by a team of administrators that features a building principal and two assistant principals.

Learn more about the RMS administrative team (listed alphabetically) below.

Christine Bryan

Dr. Christine Bryan joined RTSD in October 2019 from Downingtown Area School District, where she served as the Supervisor of Special Education since 2013. In this role, Dr. Bryan supervised both regular and special education programs and staff and acted as the PASA/PSSA coordinator and the Extended School Year (ESY) coordinator. Prior to this position, Dr. Bryan spent 13 years as a Special Education Teacher and Department Chair in West Chester Area School District.

Douglas Kent

Dr. Kent joined RTSD in February 2015 from Spring-Ford Area School District, where he served as House Principal of Spring-Ford Intermediate/Middle School (Grades 5-8) since July 2012. In this role, Dr. Kent's responsibilities include student discipline, staff observations, scheduling, determining professional development needs, and acting as the local education agency representative for all Individualized Education Plans (IEPs), Gifted Individualized Education Plans (GIEPs) and Chapter 15 (Section 504) Service Agreements. 

Dr. Kent has also served as House Principal of Spring-Ford Area High School, an Assistant Principal of Sun Valley High School and an American Government teacher at Upper Dublin High School.

David Wiedlich

Dr. David M. Wiedlich joined Radnor Middle School as Principal in July 2019.

Dr. Wiedlich’s teaching career began in The School District of Philadelphia at John Welsh Elementary (K-8). He made his way to the Downingtown Area School District in 2003, and was an English and Social Studies teacher, in addition to a high school Track and Field and middle school Cross Country coach. In 2014, he transitioned into the role of Assistant Principal at Lionville Middle School, Downingtown Area School District.  

Dr. Wiedlich serves on the Pennsylvania Association of Student Councils Board of Directors. 


  • Bachelor's Degree, Elementary Education, Indiana University of Pennsylvania 
  • Master's Degree, Curriculum and Instruction, The Pennsylvania State University 
  • Graduate Certificate, Peer Coaching and Collaboration, The Pennsylvania State University 
  • Doctorate, Educational Leadership, Neumann University 
  • Superintendent Letter of Eligibility, Neumann University