John T. Keenan, 57 — Lifelong Waterman and Essex Marine Group Colleague

John T. Keenan, a lifelong waterman whose career and passion were closely tied to the sea, has passed away at the age of 57. Keenan spent decades aboard working vessels and later joined his brother Chris at Essex Marine Group in Connecticut in 2012. His passing is being felt deeply across the local and regional boating communities.

Early Life and Maritime Formation

Born in Brooklyn, New York, Keenan pursued formal maritime training at the Great Lakes Maritime Academy. That education helped launch a life at sea that included extensive travel; friends and colleagues say he circled the globe multiple times during his seafaring years. Those voyages and the training he received shaped both his technical abilities and his deep connection to maritime life.

Career and Community

After many years at sea, Keenan shifted toward shore-side work while remaining closely involved in boating and marine operations. In 2012 he joined the team at Essex Marine Group alongside his brother Chris. Over the years he became a familiar and respected presence within the regional marine trade, known to peers across Connecticut and beyond.

Tributes from the Boating Community

Colleagues and industry associates quickly expressed condolences. “This is a tremendous loss to the boating community — John was one of the good ones, among the nicest people I’ve ever met in this business,” said Gary DeSanctis, president of AIM Marine Group, publisher of Soundings magazine. DeSanctis extended his sincere condolences to Keenan’s brother Chris and to the extended family.

That sentiment reflects the broader reaction from those who knew Keenan through professional and personal connections. Members of the maritime community remember him for his steady presence and long-standing commitment to life on and around the water.

Memorials and Donations

In lieu of flowers, the Keenan family has requested that donations be made to Mystic Seaport. The family chose this organization as a way to honor John’s lifelong dedication to maritime tradition and education. Those wishing to pay their respects or contribute are asked to follow the family’s request in memory of his life and work.

Mystic Seaport

Obituary and Condolences

The family has published a full obituary that offers additional details, opportunities to share memories, and options to send condolences. Friends, colleagues, and community members are invited to read the obituary and share recollections that celebrate John’s life and the many ways he touched others in the boating community.

Click here to read Keenan’s full obituary, leave a memory, or send condolences to the family.

Legacy

John T. Keenan’s life was defined by the sea and by the people who work on it. From formal training at the Great Lakes Maritime Academy to a lifetime of voyages and years supporting marine operations in Connecticut, he embodied a maritime tradition valued by many. His connection to family, including his long partnership with his brother at Essex Marine Group, and the regard in which he was held by peers, form a lasting legacy that will be remembered by those who knew him.

The community that mourns him today is the same community he served and enriched over many years—mariners, shipmates, coworkers, and friends who will continue to honor his memory through stories, shared experiences, and by supporting institutions that preserve and celebrate maritime heritage.