Robert Xavier Brennan

Robert was born on November 3, 1935 in Brooklyn, New York, to the late Robert H. and Winifred Brennan. After serving his country in the U.S. Army Corps of Engineers, Robert pursued his lifelong passion for learning. He earned a Master of Science degree in Physics and Mathematics from the Massachusetts Institute of Technology (MIT), a foundation that shaped both his remarkable career and his identity as a true academic.

An avid scholar, Robert continued his studies abroad in Switzerland where he met the love of his life, Verena. The two were married in 1967 and shared many years together until her passing in 2010. Fluent in German, Robert maintained a deep connection to Europe and traveled to Germany twice a year for many years. Early in his career, Robert contributed to history by working on the propulsion systems for the original Apollo 13 project. He later dedicated 20 years of service as a physicist at Picatinny Arsenal, retiring in 1993.

Robert was a man of quiet intellect and simple pleasures. His home was filled with books—most of them in German—and he preferred reading to watching television, so much so that he didn’t own a TV. He also greatly enjoyed puzzles, which perfectly suited his sharp and curious mind.

Following his wife’s passing, Robert’s longtime friend and devoted caregiver, Franca, became an important part of his life. Together, they shared many adventures including visits to Grey Towers National Historic Site in Milford, Pennsylvania, and trips to Ideal Farms in Lafayette, where he delighted in feeding goats for the very first time.

Robert had a lifelong love of cats and rescued many over the years. He leaves behind his beloved furry companions, Bonnie and Clyde. The Highlands Veterinary Hospital in Sparta has records showing that Robert spayed or neutered 32 cats at their clinic alone, in addition to the countless others he cared for throughout the community. He especially treasured his twice-weekly shopping trips to Weis with Franca every Monday and Friday. His cart was always filled with sweets and snacks, especially Ferrero Rocher chocolates which were his favorite treat. He also never failed to purchase unsalted peanuts, which he used to feed and peacefully watch the squirrels and blue jays from his back porch.

Robert’s sharp wit, feisty spirit, and deeply thoughtful nature will be dearly missed by all who were fortunate enough to hold a place in his heart.

Robert is survived by his longtime friend and caregiver whom he came to know as a step-daughter, Franca Mancini, and Dale Critchlaw. He is also survived by many siblings, nieces, and nephews.

Robert will be laid to rest privately at the Newton Cemetery Mausoleum.