Arthur Jack Kellerman, 74, passed away on Wednesday, February 11, 2026, at 12:25AM at the St. Francis Hospital and Heart Center in Roslyn, Long Island, NY. He was born in Brooklyn, NY on December 4, 1951, at Brooklyn Hospital, the first child and son of Jerry and Estelle R. Kellerman of Floral Park, Long Island, NY. He was the loving husband of Linda (Simon) Kellerman; they were married at the St. Rose of Lima Church in Littleton, NH on October 12, 1973.

Arthur attended St. Francis College for two years studying pre-med, graduated in 1973 from Apex Technical School in New York, and later completed studies at the Computer Career Center in Garden City, Long Island, becoming a Microsoft Certified Professional Industry Associate.

A survivor of the September 11 attacks in New York City, he witnessed traumatic events that he rarely spoke of, yet the weight of that day remained in his heart. Even years later, the mere mention of 9/11 would bring tears to his eyes. He bore those memories with humility and resilience, continuing forward with steadfast dedication to his work and the people he loved.

He devoted 50 years to a distinguished career in HVAC, mastering refrigeration, air conditioning, heating, and advanced automation systems. A proud member of Local Union 638, he retired from the Metal Trades Union Shop at TRANE NYC, where his skill, work ethic, and integrity earned him deep respect. Known affectionately as “Papa” and “Papa Artie” to his family, and as the “building monster motorcycle technician” to those who knew his talents - he could fix or build nearly anything set before him.

Outside of work, he embraced life. A Harley man through and through, he loved building and repairing motorcycles, especially his beloved Harleys. He found joy in guitars, muscle cars, and flying remote-control helicopters—always keeping his hands and mind busy.

Raised in a home where Jewish customs were celebrated, he attended Yeshiva and proudly celebrated his Bar Mitzvah. During his married life, his spiritual journey deepened as he came to faith in the true Messiah, the Lord Jesus Christ.

His life was one of perseverance, craftsmanship, faith, and fierce love for his family—a legacy that will continue to ride on in every engine’s roar and every quiet moment of remembrance.

He is predeceased by his maternal grandparents, Abraham and Ester Werner, paternal grandparents, Frank and Margaret Cacace, and both sets of grandparents from Booklyn, NY. He is also predeceased by his uncles, Malcom and Welles Werner.

Surviving family members include his wife, Linda (Simon) Kellerman of Queens, NY; his son, Stephen A. Kellerman and his wife, Jenna Kellerman of Westbury, NY, his daughter, Margaret Graziano and her husband, John Graziano of Oakdale, NY; sister, Wendy Kellerman of Long Island, NY; brothers and sister-in-law, John and Donna Simon and Stephen and Kathy Simon all of Littleton, NH; his grandchildren: Alexander, Madeline and Samantha Kellerman, and Nicholas and Grace Graziano. He is also survived by nephews Matthew and David Simon, and nieces Tammie Ruth Egnew and Lori Andi Sornell of Littleton, NH and Elisa (Simon) Monohan and Christine (Simon) Bregou of Buffalo, NY.

A private burial for Arthur will be held the St. Rose of Lima Catholic Cemetery in Littleton, NH.

In lieu of flowers the family suggests donations be made to St. Jude's Children's Hospital or Shriners Children's Hospital.