Robert Orth McClintock, Sr.

Robert (Bob) McClintock passed away peacefully on December 21, 2025, at the age of 90. While his health was failing, his love for his family never did. During his last days, he often said, “family first.” He wanted his children to focus on their families and not on himself. He loved his ten grandchildren beyond measure and was so happy to have six great-grandchildren.

Bob was born on March 28, 1935, in Elizabeth, New Jersey, the middle of three boys. The family moved to Cranford, New Jersey, where the boys spent their childhood. Bob left New Jersey to attend the College of William and Mary in Williamsburg, Virginia, where he met Eva Green, his future wife. In his words, it was love at first sight! Once married, they moved to Rochester, New York, where Bob attended the University of Rochester, receiving a Master of Science in Radiation Biology. After several job-related moves, they settled in Wayne, Pennsylvania, where they raised their family. In their later years, they relocated to Northeast Florida, living in Atlantic Beach and Jacksonville, where they built a life close to family and friends. Throughout, they enjoyed supporting their children and grandchildren in their various endeavors, always making time to attend a game, meet, concert, or any other activity.

Throughout his life, Bob held many jobs. He was a nuclear engineer who worked for General Electric on the Apollo space missions, specifically on the SNAP-27 project, which powered the scientific instruments that the astronauts left on the Moon. He worked for the US Government as the Northeast Director of Safety for the Nuclear Regulatory Commission, leading the safety program in the new atomic energy field. He oversaw part of the cleanup of the nuclear meltdown at Three Mile Island. He then left government to work for a nuclear pharmaceutical company, ensuring nuclear medicine was safe for patients and medical professionals.

But Bob’s real love was helping children. While his own children were growing up, Bob embraced guiding children who were struggling. These children became part of his family while they learned to cope with life’s challenges. This love turned into his passion when he retired. He volunteered with many programs in the Duval County Public schools, from physical education, summer school, reading tutor, bike and water safety, to finally finding his niche at Neptune Beach Elementary School where he was “Mr. Bob” to Pre-K children with disabilities. Duval School district named him Senior Volunteer of the Year in 2013 for his work there!

He is survived by his brother, John McClintock, Jr. (Nancy), his children, son Robert McClintock, Jr. (Carol), daughter Elizabeth Cartlidge, daughter Katharine Testorf (Kai), along with 10 grandchildren and 6 great grandchildren. He was predeceased by his wife of 66 years, Eva McClintock, parents, John and Dorothy McClintock, and brother, Donald McClintock (Barbara).

There will be no public service, but the family asks those who want to remember him to do a random act of kindness for a child in his memory. If so inclined, send a note and/or picture of the act to kindnessacts10@gmail.com so it can be shared with his family!