Mark will be dearly remembered for knowing something about absolutely everything; conducting research that matters; his ability to take complex issues, reach the core of what really matters, and then effectively communicate the message to the public; his thought provoking “rants”; his core ethics and need to do what is right; and his quick wit, including his opinions on sandals in the work place. Mark was the founding Editor-in-Chief of <i> Child Maltreatment: The Journal of the American Professional Society on the Abuse of Children </i>. Mark was the recipient of the following APSAC Awards: Outstanding Service to APSAC (2000), Outstanding Research Career Achievement (2015) (later named the March Chaffin Outstanding Research Career Achievement), and <i> Child Maltreatment </i> Article of the Year (2006 and 2009).