Joseph Thomas Threston, a distinguished American Navy systems engineer whose pioneering work significantly advanced the Aegis Combat System, passed away on March 4, 2026, at the age of 90. A longtime resident of Cinnaminson, New Jersey, Mr. Threston's career spanned nearly four decades, leaving an indelible mark on naval defense technology.

Born on September 20, 1935, in Wilkes-Barre, Pennsylvania, Joseph was the only child of Joseph and Esther Threston. He moved to Philadelphia as a child, where he graduated from North Catholic High School. His pursuit of knowledge led him to Villanova University, where he earned a bachelor's degree in mechanical engineering in 1957.

Furthering his education, Mr. Threston attended the University of Southern California on a fellowship with Hughes Aircraft, obtaining his master's degree in mechanical engineering in 1959. This academic foundation prepared him for a remarkable career that would shape the future of naval defense. He later pursued additional graduate studies at the University of Pennsylvania.

In 1959, Mr. Threston embarked on a 38-year career at RCA in Moorestown, a company that would later evolve through acquisitions into General Electric, Martin Marietta, and ultimately Lockheed Martin. It was during this extensive tenure that he dedicated much of his expertise to the creation, development, and implementation of the groundbreaking AEGIS radar defense system.

His leadership and technical acumen were recognized through various promotions, culminating in his roles as Director of Naval Systems, Chief Executive of the Moorestown facility, and eventually Company President at Lockheed Martin. His contributions to the AEGIS system were widely acclaimed, earning him the Harold E. Saunders Award from the American Society of Naval Engineers in 1991. In 1995, he was honored with the prestigious IEEE Simon Ramo Medal for his exceptional leadership in the design, development, and production of the AEGIS ship combat system.

Even after his retirement, Mr. Threston continued to lend his invaluable expertise as a consultant to Lockheed Martin for many years, demonstrating his enduring commitment to the field. Beyond his professional achievements, Joseph Threston was a devoted Catholic, serving as a lector and Eucharistic Minister at Sacred Heart Parish in Riverton for 60 years.

He shared over 65 years of marriage with the love of his life, Jean Threston (nee Kochler), whom he met during their college years. Together, they raised their children in Cinnaminson, where they resided for over six decades. Mr. Threston's love for travel led him and his wife to explore every continent, and he instilled this passion in his children through numerous summertime journeys across the United States and Canada. The family also cherished their home in Cundy's Harbor, Maine, where they entertained friends for over 40 years.

Joseph T. Threston is survived by his beloved wife, Jean; his children Anne (Bruce Macke), Joseph III (Lisa), and Christopher; and his grandson, Christopher Threston, Jr. He was predeceased by his parents, Joseph and Esther Threston. His legacy of innovation, leadership, and dedication to his family and faith will be deeply missed by all who knew him.