Chimes Delaware

Executive Leadership

Terence G. Blackwell, Jr., BCBA
President and Chief Executive OfficerTerence G. Blackwell

Mr. Blackwell joins the Chimes Family of Services as our President and Chief Executive Officer. He brings more than two decades of diverse leadership experience serving the needs of people with disabilities to his new role with Chimes. Most recently, he served as Chief Operating Officer of Manhattan-based Services for the Underserved (SUS), providing services to people with intellectual disabilities, behavioral health, mental health, and substance abuse issues as well as veterans’ services in a variety of coordinated and integrated care models

In addition to earning his M.S. in Psychological Services from the University of Pennsylvania, including attendance at the Wharton School, Terence is a Licensed School Principal, Board Certified Behavior Analyst, and Certified Addictions Specialist. He earned his B.S. in Psychology from Saint Peter’s University.

Mr. Blackwell’s career history has ranged from serving as a Direct Care Counselor for a large community-based residence to leading the development and operation of preschool programs for children with disabilities under the authority of the New York State Educational Department. He also launched his own consulting practice for not for profits and government-funded agencies and led program expansion and business development efforts for a large not for profit that provides job opportunities for people with barriers to independent employment.

John Mahon
Chief Operating Officer, Chimes Delaware

Mary “Terry” Collard

Formerly the Director of Vocational Services, Mr. Mahon is the Chief Operating Officer of Chimes Delaware and has been working with Chimes since 1999. Possessing a diverse background in program development, social service delivery systems and business development, John brings a unique set of skills and experience to the position. From drug and alcohol services, gang mediation in the criminal justice system and rehabilitative services to industrial accident and stroke patients, he has worked with a wide and diverse population. Mr. Mahon attended LaSalle University. He brings knowledge of small business development, having developed and sold a series of small businesses. Since arriving at Chimes, the Vocational Department has grown from 45 individuals in New Castle County to 360 individuals throughout the state of Delaware.