Picture of Administrative Team Members
Dr. Healey

Principal Dr. Tim Healey


Dr. Healey is in his 31st year as an educator in Prince William County, including 16 years as a high school principal (both at Colgan and Osbourn Park). He has also been an English teacher, an assistant principal, and served for five years as the Associate Superintendent for Student Learning and Accountability. Dr. Healey is serving as President-Elect on the Board of Directors for the Virginia Association of Secondary School Principals (VASSP) and is on the James Madison University College of Education’s Executive Advisory Council. He is an adjunct professor at the University of Mary Washington. Dr. Healey earned his doctorate in Educational Leadership and Policy Studies from Virginia Tech, a master’s degree in Educational Administration from Virginia Tech, and a bachelor’s degree in English and secondary education from James Madison University.

Dr. Healey lives in Prince William County with his wife (who is a teacher in PWCS), and his three children (all of whom either currently attend or graduated from Prince William County Public Schools).

Mrs. McClellan

Assistant Principal Melissa McClellan


Alphas: (A-C, O-P)
Supervisor: English & World Language, ESOL

Mrs. McClellan is in 23rd year in education. She started her career as an educator in Prince William County in 1995 as a special education teacher at Woodbridge High School and several other schools in the county. She was then a member of the opening faculty of Forest Park High School. Mrs. McClellan served as a department chair for Special Education when Freedom High School opened its doors. She also served as a Teacher on Administrative Assignment at Freedom. From there, Mrs. McClellan became an Assistant Principal at Lee-Davis High School in Hanover County and then at Mountain View High School in Stafford County. Mrs. McClellan earned her bachelor's degree at Kutztown University of Pennsylvania, her master's degree from George Mason University, and her certification in educational leadership and administration from Virginia Commonwealth University. Mrs. McClellan loves being part of the Colgan community!

Mr. Parrish

Assistant Principal David Parrish


Alphas:(G - M)

Supervisor: Special Education, FACS

David W. Parrish is in his 19th year in Prince William County. Prior to becoming Assistant Principal at Colgan in 2016, he spent 15 years as a memberof the Independent Hill/PACE East Program, serving as an educator, Teacher on Administrative Assignment, and Assistant Principal.

Dr. Parrish earned his undergraduate degree at Longwood University, graduate degrees in Special Education and Educational Leadership from George Mason University, and doctoral degree in Educational Leadership from The College of William and Mary. He currently supervises the Special Education and Health and Physical Education departments, and proudly serves as the sponsor of FIN friends. Dr. Parrish resides in Prince William County with his wife and children and is honored to be a member of the Colgan High School community

Assistant Principal Karyn Riddle


Alphas: (Q-Z)
Supervisor: Math, Social Studies, Yearbook/Journalism,


Karyn Riddle is in her 20th year in education. She is a native of Prince William County and attended Bennett Elementary, Marsteller Middle, and Osbourn Park High School. She earned a Bachelor’s of Science degree in Mathematics from Longwood University, and a Master’s in Educational Leadership from George Mason University.

Mrs. Riddle has been in Prince William County Schools for her entire career as an educator. During her time here, she has been a high school math teacher, teacher on administrative assignment, and assistant principal at Osbourn Park High School. In 2010 she left Osbourn Park to work in the Office of Professional Learning, as an administrative coordinator; and later as the leadership development coordinator. Prior to coming to Colgan, she was been the supervisor of student management if the Office of Student Management and Alternative Programs.

Mrs. Riddle loves being part of the Colgan community! #gosharks

Ms. McDonald, Administrative Intern

Assistance Principal Octavia McDonald


Alphas: (D - F and N)
Supervisor: Science, CTE,  GEMS, Library

It is indeed Octavia McDonald’s pleasure to join Colgan High School, and she eagerly anticipates what will unfold this year. This year, Mrs. McDonald is supervising science, CTE/FACS, and Gifted Education.

Mrs. McDonald graduated from the University of North Carolina at Greensboro with a Bachelor of Arts Degree in English Education. After obtaining that degree, she set to work in a local school district as a high school English teacher while working also as an adjunct professor in the ESOL department of a community college. Shortly after relocating to Northern Virginia, she completed a Master of Arts degree in English literature--and most recently, a license in Educational Leadership. Mrs. McDonald believes that education is so very dynamic, and just when you think you have obtained your last and final gradation, you will see a new one beginning.

Finally, Mrs. McDonald has taught incredibly bright students each year who have really astonished her by their limitless desire to be the best—she believes that is the reward of her job. Moreover, she trusts this year’s work with students and parents, faculty, and the community will bring immeasurable gratification. Mrs. McDonald is thrilled to be an administrative intern at Colgan High School.


Director of School Counseling Claire Handville


Mrs. Claire Handville began her school counseling career at Gar-Field Senior High School. At Gar-Field, she worked as a part of the counseling team that achieved the prestigious American School Counseling Association’s Recognized National Model Program Award in 2016. Mrs. Handville then was part of the inaugural staff at Charles J. Colgan, Sr. High School as a school counselor, before becoming Director of School Counseling.

Mrs. Handville studied at the University of Florida (Go Gators!), where she earned a B.S. in Psychology, a B.A. in Sociology, and a minor in Family, Youth, and Community Sciences. Additionally, she earned a M.A. in Counselor Education with a concentration in School Counseling from the University of South Florida and is a Nationally Certified Counselor. Most recently, Mrs. Handville earned her second Master’s degree- M.Ed. in Education Leadership from George Mason University.

Mrs. Handville lives in Prince William County with her husband and two children, watching Gator football, crafting, and reading.

Mr. Huckestein

Director of Student Activities David Huckestein

Supervisor:  HPE, Business/Marketing


Mr. David Huckestein is Colgan High School's Director of Student Activities. Mr. Huckestein has spent his career as an educator in Prince William County. Most recently, he was the principal of Woodbridge Senior High School since 2007. Prior to that, he spent ten years at Stonewall Jackson High School as principal from 2003-2007, an assistant principal from 2000-2003, and a teacher on administrative assignment in 1998-2000. Mr. Huckestein began his teaching career in 1990 at Woodbridge High School. In 2014, Mr. Huckestein was recognized as The Washington Post's Principal of the Year for Prince William County.

He was the head basketball coach at Stonewall Jackson High School from 1998-2000, and the assistant basketball coach at Woodbridge High School for eight years, from 1990-1998.

Huckestein resides in Prince William County with his wife, Sheila and their two sons, Grant and Tyler.

Mr. Huckestein

School Safety and Security Officer Gary Bailey


Mr. Gary Bailey retired from the Fairfax County Police Department in March 2018. Eighteen of the twenty-seven years he served on the department was as a Major Crimes detective. Shortly after his retirement from the department, Gary was hired as the Security Specialist at Benton Middle School. He completed a full school year there before being hired as head of security at Colgan.

Mr. Bailey is a graduate of Norfolk State University and received a bachelor's degree in mass communications.

Mr. Bailey enjoys golfing, reading, and watching a lot of ESPN. He is a huge Dallas Cowboys fan (others beware)! Mr. Bailey is married to his wife, Peggy, of 28 years with four children.

Ms. Willis

Executive Secretary Cheryl Willis


Cheryl Willis came to Colgan High School from Forest Park High School where she has worked as the Executive Secretary for four years. Before working at Forest Park, Ms. Willis was a Secretary III at Benton Middle School for three years; and prior to Benton worked at Coles Elementary School for three years. Ms. Willis started with Prince William County Schools as an Office Assistant in the Human Resources Department.

Ms. Koca

Finance Officer Tamra Koca


Tamra Koca came to Colgan High School from Woodbridge Senior High School, where she had been the bookkeeper since 2005. Before working at Woodbridge, Mrs. Koca was the bookkeeper at Leesylvania Elementary since 2004.

Koca had the privilege of being part of the team that opened Mary Williams Elementary School and was overjoyed at the opportunity to be a part of opening another school in Prince William County.

Koca enjoys spending time with her husband Jon and her two children Garrett and Jordan. When she's not busy working, you'll find her in the kitchen because she secretly wants to be a Master Chef. She is passionate about numbers and finance and she feels truly blessed to be part of the Colgan High School family.