David Gagnon

Executive Director

David Gagnon-PhotoEmail: dgagnon@mariamitchell.org
Phone: 508-228-9198


Recently named Executive Director, David joins the Nantucket community from Brattleboro, Vermont. David most recently served as the Chief Operating Officer (COO) for the Organic Trade Association (OTA) in Brattleboro, VT, a role he filled since 2000. As COO, Dave managed  fundraising and development, IT, HR, membership, facilities and finance for the organization. Prior to his work at OTA David and his wife Shelley Dresser served as the co-Executive Directors of the Bonnyvale Environmental Education Center in Southern Vermont. Bonnyvale’s programs included research, summer camps, and citizen science, with a dynamic school out-reach program.  Soon after completing his graduate work David founded TRI-S Environmental Consulting, advising clients and managing their environmental cleanup projects with a staff of 25.

Interests and Accomplishments

Dave has a Bachelor’s Degree from the University of Massachusetts in Environmental Studies and a Master’s Degree from Yale University from the School of Forestry and Environmental Studies.

He is excited about sharing his passion for nature, science and history with the students and researchers associated with MMA. Dave is a novice sailor and has a 18’ wooden “Shellboat” built in Georgia, VT.

Community Service

David served on numerous boards including the Brattleboro Food Coop, the Hilltop Montessouri School, and Charlement Academy.  Over the last 6 years David has worked with middle school boys as a very regular volunteer at Eaglebrook School.  David also worked as a student mentor in Brattleboro.