John DeMartini New York Cause of Death: Longtime Northport Baseball’s Coach John DeMartini “DeMar” Passes Away

Longtime Northport coach John DeMartini has passed away. The field was named after him in 2021. He taught in the Northport district for 57 years and coached for 38 seasons.

The Northport community mourns the loss of John DeMartini, affectionately known as “DeMar,” a longtime coach and cherished mentor in Northport Baseball. DeMartini’s passing marks the end of an era for the sport in the area, where his influence extended far beyond the field.

For decades, DeMartini dedicated himself to coaching and nurturing young athletes, fostering not only their skills in baseball but also their growth as individuals. His passion for the game and commitment to his players earned him widespread respect and admiration.

“DeMar wasn’t just a coach—he was a role model and a friend to so many,” shared a former player. “He taught us how to play with heart and how to carry ourselves off the field with integrity.”

Under his guidance, countless players not only excelled in the sport but also carried his life lessons into their personal and professional lives.

Details about funeral arrangements and ways to honor DeMartini’s memory are expected to be announced soon. The Northport Baseball community plans to hold a tribute in his honor, reflecting on his extraordinary legacy and the countless lives he touched.

John DeMartini will be deeply missed, but his impact will live on in the players, families, and community he so passionately served.