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Leadership Team

Meet the Jefferson-Houston Leadership Team

Dr. John McCain, Transformational Head of School

Dr. John McCain, is the Transformational Head of School for Jefferson-Houston PreK-8 IB School. Prior to July 2020, Dr. McCain served as an elementary and middle school principal, assistant principal and a support specialist for teachers, providing coaching to teachers to help them improve their academic outcomes.

Dr. McCain has also served as an area superintendent of elementary schools, and Advisor for the Principal Leadership Academy at Highpoint University in North Carolina, where he facilitated training sessions to provide feedback around the recruitment and selection process of teachers.

He began his career in education as an elementary teacher of grades four and six in Mebane, North Carolina. Dr. McCain quickly moved to a position as assistant principal and served as a middle school principal in Roxboro, North Carolina from 2007 until 2011. That is when he moved back to elementary education as a principal in Durham, NC where he eventually served as Area Superintendent of Elementary Schools. More recently, Dr. McCain has worked in the private education sector as an education support specialist for a firm in North Carolina.

Dr. McCain has a doctorate in educational leadership from Highpoint University in North Carolina. He also holds a Masters in Supervision and Administration, K-12 from North Carolina State Agricultural and Technical University and his Bachelor of Science in Elementary Education is from Winston Salem State University, also in North Carolina.





Dustin Barnes, Academic Principal

Barnes, who has served as academic principal at Francis C. Hammond Middle School since 2014, joined Jefferson-Houston PreK-8 IB School July 1, 2019. Barnes brings more than ten years of experience in public schools. He previously served as a high school history teacher in Queen Anne County Schools and as department chair of World History at T.C. Williams High School. We are confident that he will be a strong and experienced addition to the leadership team at Jefferson-Houston.


Tiffany Young, Assistant Principal

Young has previously worked as an assistant principal at Fairfax County Public Schools and Arlington Public Schools, where she supported literacy instruction, special education, worked to better leverage Title I resources for students, and led the process for school innovation and improvement planning. She was a Fullbright Memorial Fund Teacher to Japan in 2002, has a Master of Education in curriculum and instruction from Cambridge College, a Bachelor of Science in elementary education from South Carolina State University, and qualifications in administration and supervision in preK-12, elementary education K-6 and middle school math. She has a post-master’s in educational leadership from The George Washington University.



Julita Brown-Dunn, Dean of Students

Ms. Brown-Dunn has been at ACPS for the last 7.5 years and has served as a classroom teacher, an Equity Advisory Committee member, and a Reading Interventionist, PreK - 8th grade. She has been in the field of education for 28 years. Ms. Brown-Dunn earned her B.A. in English with a minor in History from Talladega College in Talladega, Alabama, a Masters of Education in Educational Supervision and Administration Prekindergarten - 12th Grade from Regent University, and is currently completing an M.Ed with an endorsement as a Reading Specialist from Regent University. As the Dean of Students, her main goal is to cultivate a culturally responsive, restorative, and safe environment for students, their families, teachers, and staff.