Dr. John F. Niblack retired in 2002 from Pfizer Inc. as vice chairman of the board of directors and as president of Pfizer Global Research and Development.  

His 35-year career at Pfizer spanned almost every aspect of research and development operations. As president and principal scientific officer of the Global Research and Development division, he managed the largest pharmaceutical research force in the world — with 12,000 researchers and an annual research budget of more than $5 billion.  

He earned a B.S. in chemistry from Oklahoma State University and an M.S. and Ph.D. in biochemistry from the University of Illinois.  

Niblack is now on the board of the Norton Museum of Art in Palm Beach, Florida, and is a member of the visiting committee of The Metropolitan Museum of Art's Asian Art Department. 

Heidi Grey Niblack graduated in 1968 from then-Colby Junior College with a degree in liberal arts. She worked as an office administrator, including as an executive secretary at Pfizer, Inc., and part time in an advertising agency that specialized in pharmaceutical clients.  

Volunteerism has also been a significant aspect of her life and career. She is currently a board member with the United Way of Palm Beach, Florida. She previously served as president of her local garden club, was involved with the Salvation Army in New London, Connecticut, volunteered at her church, and contributed time and resources to High Hopes Therapeutic Riding in Old Lyme, Connecticut, which benefits individuals with physical, mental and emotional challenges. 

For years, the Niblacks have generously supported Colby-Sawyer's highest priorities; their philanthropy has created opportunities that benefit students today and will continue to do so for future generations.  

The couple are members of the Legends Society, which recognizes people who have contributed $1 million or more to the college. They have been leadership donors to the Colby-Sawyer Fund and were early donors to the Davidow Center for Art + Design. The John and Heidi Grey Niblack ’68 Black Box Theater is named in their honor.  

In 2018, the Niblacks established a $500,000 endowment to support student internships and engaged learning opportunities. And, in 2024, Heidi received the 2024 Distinguished Alumni Award in recognition of her exceptional contributions to society. The Niblacks are also members of the Heritage Society, having made provisions for the college in their estate plans. 

The couple live in New York City, Florida and Connecticut, and are active in community and philanthropic activities.