Michael Maciejewski Sr.

Michael Maciejewski Sr., lovingly known as “Mach,” 66, of Williamstown, passed away peacefully on Tuesday, February 3, 2026, at home with his loving family by his side.

Michael was the loving son of Josephine and the late Robert Maciejewski Sr., beloved husband of Diane (née Wise), devoted father of Andrea Maciejewski and the late Michael Maciejewski Jr., dear brother of Robert (Anna) Maciejewski, Debra (Frederick) Cosenza, and Lisa (Todd) Boyer, and a loving uncle and great-uncle to many nieces and nephews whom he adored deeply.

Michael grew up in Washington Township, where at just 14 years old he met the love of his life, Diane. From that moment on, family became and always remained his top priority. Anyone who met Michael would say the same thing: he was truly a 10 out of 10 kind of person. Dedicated, loyal, and selfless, he put his heart into everything he did and always put his family first.

Michael shared an extraordinarily close and unbreakable bond with his daughter, Andrea. Their relationship was built on deep love, trust, laughter, and constant support. She was his pride and joy, and he never missed a chance to talk about her or remind her how much she meant to him. Their closeness was something truly special and a reflection of the kind of father he was.

Michael loved spending quality time with his brother and two sisters; golfing, hunting, and fishing with his brother and best friend Bill; mowing the lawn; and enjoying life’s simple moments. 

He was a devoted dog dad to Jax, who never left his side and brought him endless comfort and joy.

A true family man, Michael treasured time spent together on vacations, especially trips to Florida, visits to the casino, and simply being with the people he loved most. 

An extremely hard worker, Michael took great pride in his career at Terumo Medical, where his dedication and work ethic were unmatched.

His humor was unforgettable, quick, genuine, and comforting and anyone who knew him could always count on him.

Michael fought cancer bravely for 10 years and never stopped fighting until his final breath, showing remarkable strength, courage, and determination throughout his journey.

Above all else, Michael will be remembered for his unwavering love, his unmatched humor, his incredible strength, and the way he made everyone around him feel supported, loved, and safe. He was simply the best and there will never be another like him.

Relatives and friends are invited to attend Michael’s visitation on Wednesday, February 11th, from 10:30 AM to 12:00 PM at Bell-Hennessy Funeral Home, 420 S. Main Street, Williamstown. A memorial service will follow at 12:00 PM. Cremation was held privately.

In lieu of flowers donate to Neuroendocrine Tumor Research Foundation @ https://netrf.org/get-involved/give-now/

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