John Michael HENNESSY

John Michael Hennessy, 74, of Manchester, CT, passed away after a brief illness on June 14, 2025, with his family at his side. He was born September 29, 1950, the son of the late Jack and Mary Lou Hennessy.

John worked for many years at Combustion Engineering (later GE Power) in Windsor, CT. Above all, he was a devoted family man who cherished moments spent with those he loved. He enjoyed countless trips and celebrations, including memorable family trips to Florida, neighborhood New Year’s Day parties, summer vacations in Wildwood, NJ, and the Hennessy family reunions, he was a loving husband, father, and grandfather. Known for his sharp and sardonic wit — and reverently known as Bigfoot by those closest to him — John had a humor and charm that will be missed by all who knew him.

He is survived by his wife, Christine; three sons, John (Malancha), Gregory, and Peter (Devan); and four cherished grandchildren, Galaxy, Rishikesh, Kyleigh, and Ella. He was proud of being the big brother to his surviving siblings Thomas (Kendra), Margaret (Lyle), Mary (Joseph), and Patricia (James), and loved the company of his numerous aunts, uncles, cousins, nieces, and nephews. He is predeceased by his parents Jack and Mary Lou.

A memorial service honoring John’s life will be held in his hometown of Wellsville, NY, on Saturday, June 28, 2025, at 1 pm at the Crosstown Alliance Church, 450 North Highland Avenue. Burial will be in Sacred Heart Cemetery, 276 South Main Street, Wellsville, NY 14895. To leave online condolences please visit www.embserfuneralhome.com .