It is with profound sadness that we announce the passing of Daniel J. Graham, a beloved husband, father, and grandfather, who passed away peacefully at home on May 11, 2026, at the age of 80. Dan carried the warmth of Irish hospitality, a love for storytelling and a good joke wherever he went. He was the anchor of our family, whose quiet strength and devotion to his wife Ann and his children never wavered.
Dan was born in Rasharkin, Northern Ireland and earned his Electrical Engineering degree at Queen’s University in Belfast, NI. After marrying Ann, he accepted a position with General Electric and they moved to the Philadelphia, PA area. He then completed his Master’s Degree in Computer Science at the University of Pennsylvania. After moving to Southern New Jersey, Dan worked for Computest, Siemens, and then cofounded InTest where he became a Director and Senior Vice President. Over the years, Dan held several patents for his innovative ideas in technology and won numerous awards. Among his many achievements, Dan served for decades in advisory and organizing capacities for various IEEE technical communities, including ITC. Dan also was an advisor for Drexel University’s Engineering Department and approved and awarded many scholarships to engineering students.
Dan was a car enthusiast who never missed an F1 Race, Sunday drives, exploring new restaurants, and a good glass of whisky. He looked forward to his weekly lunch with friends, his yearly pilgrimage to Florida with Ann, and a beautiful view. He mostly loved spending time reminiscing with family and friends. Last year, Dan and Ann moved to Chester County, PA to be closer to their family. His advice was sought by many and his presence was a source of comfort to all who knew him.
Dan was preceded in death by his parents, John and Annie Graham, and his sister, Eileen.
He is survived by his beloved wife of 57 years, Ann; his children, Danelle, Eileen (Tom), Siobhan (James), and Elizabeth Ann (Radacal) and his grandchildren, Robert, Sean, Ashleigh, Elijah, James “Jake”, and Daniel, who were the true lights of his life. He also leaves behind 7 siblings (Lily, Joan, John, Joyce, Pearl, Mavis, and Brian), nieces, nephews, and an extended family in Northern Ireland and Scotland.
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