George Hannigan Greenwich, CT Obituary: Remembering a Beloved Community Leader After Bicycle Accident

George Thomas Hannigan, a longtime Greenwich, Connecticut, resident, has died following injuries sustained in a bicycle accident. He passed away on August 9, 2026, at the age of 71, leaving behind his wife, children, grandchildren, extended family and a wide circle of friends and colleagues. His death has prompted an outpouring of remembrance for a man whose life was closely connected to Greenwich through family, firefighting, boating, community service and cycling.

According to his obituary, Hannigan was born in Rockville Centre, New York, on December 29, 1954, before his family moved to Old Greenwich. He was raised in the Shorelands area and developed a lifelong love of the water from an early age. Boating and fishing remained important parts of his life, and he was frequently found on Long Island Sound aboard his boat, the “Kelly Grace.”

Hannigan graduated from Greenwich High School in 1973 and later attended Central Connecticut State College, where he met Mary Baum. The couple married in 1980 and built their life together around family, friendships and service to their community.

A Career in Fire Service

One of the most significant parts of Hannigan’s professional life was his career with the Greenwich Fire Department. He began in the fire service as a member of the Sound Beach Volunteer Fire Department before joining the Greenwich Fire Department in 1979.

During his distinguished career, Hannigan served on the Executive Board of IAFF Local 1042 and ultimately retired in 2007 as Deputy Fire Marshal. His experience in firefighting and construction later helped him develop and teach a Building Construction for the Fire Service course at Norwalk Community College, where he educated hundreds of aspiring firefighters.

His commitment to learning continued throughout his career. He earned a master’s degree in Fire Investigation from the University of New Haven and helped establish a Joint Fire Investigation Task Force involving the Greenwich Fire and Police Departments. His work in fire and explosion investigations eventually took him into a respected international career in the field.

Family, Community and Cycling

Outside his professional life, Hannigan was deeply involved in the Greenwich community. He coached youth sports, served as president of the Rocky Point Club and became known for helping organize its annual pancake breakfasts.

He was also serving as Commodore of the Greenwich Boat and Yacht Club when he died. The club was an important part of his daily routine, with the obituary noting that he visited regularly to make sure everything was in order.

In later years, Hannigan developed an enthusiasm for cycling. His grandchildren inspired him to undertake a major fitness journey, during which he lost more than 150 pounds. He subsequently became an avid cyclist and regularly rode throughout Greenwich and neighboring communities. His interest in cycling also developed into a commitment to bicycle safety and helping others obtain bicycles.

The circumstances of the accident have not been fully detailed in the public obituary. The family expressed gratitude to Stamford Hospital staff, first responders and Hannigan’s cycling friends who acted quickly following the accident that resulted in the injuries he later succumbed to.

Remembering George Hannigan

Hannigan is survived by his wife, Mary; his children, Mike, Kelly and Tim; six grandchildren; siblings; and numerous extended family members. His grandchildren—Grace, Will, Georgia, James, Cash and Knox—were described as among his greatest joys.

Calling hours were held at Leo P. Gallagher & Son Funeral Home in Greenwich on August 13, followed by a Funeral Mass at St. Mary Church on August 14.

George Hannigan leaves behind a legacy defined by service, family and an enduring willingness to help others. From his years protecting the Greenwich community as a firefighter and investigator to his later passion for cycling and bicycle safety, his life was marked by activity, generosity and commitment.

For those who knew him, his memory will remain connected to the many communities he served and the family he loved deeply.