4270 John Marr Dr., Number 701, Annandale, VA 22003 info@gpmcdc.org

Board of Directors

Derrick Petit


Derrick is a native of New Orleans, Louisiana. He earned Dual Bachelor of Arts degrees and a Masters in Public Administration from Louisiana State University as well as a Juris Doctor from Howard University School of Law.  He is a former middle school teacher, with a passion for education and mentorship, and currently practices Technology, Media, and Telecommunications law at Wiley Rein LLP.

Nicholas Northington


Nicholas is a native of the Richmond, Virginia. He earned his Bachelor of Science degree in Human Resources Management from Virginia State University and a SPHR Certification from the HR Certification Institute. He has provided HR and D&I consulting to numerous fortune 500 Companies. He is currently a Senior HR Manager at Freddie Mac.

Charles Sumpter


Charles is a native of the Bronx, New York. He earned his Bachelor of Arts degree in Political Science and Chinese (Mandarin) from Union College and a Masters in Management from the Catholic University of America. He is a community political activist and has served as on various board and commissions in Northern Virginia. He is currently a consultant in the Human Capital Practice at Booz Allen Hamilton.

Gary Roebuck

At-Large Director

Gary is a native of Chicago, Illinois. He earned a Bachelor of Music degree in Vocal Performance from University of Rochester’s Eastman School of Music, a Master of Science degree in Information Systems from DePaul University, and a Master of Public Administration from the University of Baltimore. He is an active musician in the DC area and active in several professional associations. He is currently Director of Administration and Operations at the Association of Research Libraries.

William Wanzer, III


William is a native of Woodbridge, VA. He earned his Professional NAAB-Accredited Masters of Architecture from Hampton University, where he received many accolades in the field of Architecture with community and design based work. He has a strong passion for the arts and architecture, education and mentoring, and community. William currently practices architectural design at Butz-Wilbern LTD.