Jefferson Davis Howell, Jr., the former director of NASA’s Johnson Space Center in Houston, passed away on July 2, 2025, in Bee Cave, Texas, at the age of 85. Howell’s tenure at NASA was marked by significant achievements and profound challenges, including his pivotal role in the construction of the International Space Station and his leadership during the tragic loss of the space shuttle Columbia.
Howell was instrumental in advancing the International Space Station project, overseeing four space shuttle missions that delivered crucial equipment and hardware to the orbiting laboratory by the 2004 deadline. His leadership was tested further during one of NASA’s darkest hours, following the STS-107 disaster. Howell took personal responsibility to support the bereaved families, ensuring they were informed throughout the investigation process.
“Gen. Howell led NASA Johnson through one of the most difficult chapters in our history, following the loss of Columbia and her crew,” said acting associate administrator Vanessa Wyche. “He brought strength and steady direction, guiding the workforce with clarity and compassion. He cared deeply for the people behind the mission and shared his leadership skills generously with the team. We extend our heartfelt condolences to his family and all who knew and loved him.”
A Legacy of Leadership and Compassion
At the time of his appointment as director, Howell was serving as a senior vice president with Science Applications International Corporation (SAIC), managing safety, reliability, and quality assurance at Johnson. His leadership style was characterized by a commitment to fostering collaboration between civil servants and contractors, a mission he pursued diligently after the Columbia tragedy. Howell left NASA in October 2005, shortly after the successful Return-to-Flight mission of STS-114.
“General Howell stepped into leadership at Johnson during a pivotal time, as the International Space Station was just beginning to take shape. He led and supported NASA’s successes not only in space but here on the ground – helping to strengthen the center’s culture and offering guidance through both triumph and tragedy,” said Steve Koerner, Johnson Space Center’s acting director.
Howell’s impact extended beyond his professional achievements. He was a retired lieutenant general in the U.S. Marine Corps, having flown over 300 combat missions during the Vietnam War. His military career was distinguished by valor and dedication, qualities that he carried into his work at NASA.
Remembering a Hero
Born in Victoria, Texas, Howell’s life was one of service and leadership. His legacy at NASA is remembered not only for the milestones achieved under his direction but also for the compassion and integrity he demonstrated during times of crisis. Howell is survived by his wife, Janel, and their two children. In recognition of his contributions, a tree dedication ceremony will be held at NASA Johnson’s memorial grove in the coming year.
Howell’s passing marks the end of an era for NASA, but his influence will continue to guide the Johnson Space Center for years to come. As the space agency looks to the future, Howell’s legacy of resilience and leadership remains a guiding light for those who follow in his footsteps.
