Joylette Goble: Katherine Johnson's Daughter

When the world learned the name Katherine Johnson — the NASA “human computer” whose calculations carried John Glenn into orbit and Apollo 11 to the Moon — attention naturally turned to her family. Her eldest daughter, Joylette Goble, chose a quieter path than Hollywood fame, but her own story is remarkable: a NASA mathematician in her own right, a Lockheed Martin engineer, and today one of the most dedicated keepers of her mother’s legacy.

This biography covers who Joylette Goble is, her family background, her education and career, and the role she plays in preserving one of the most important stories in American science. For more life stories, browse our Biography section.

Who Is Joylette Goble?

Joylette Goble — known professionally in later years as Joylette Goble Hylick — is the eldest daughter of Katherine Johnson, the legendary NASA mathematician portrayed by Taraji P. Henson in the 2016 film Hidden Figures. Her father was James Francis Goble, Katherine Johnson’s first husband. You can read the full story of her mother’s career in Katherine Johnson’s Wikipedia biography.

Unlike her mother, Joylette did not become a household name. She built a serious technical career of her own — first as a mathematician at NASA’s Langley Research Center, then as a senior requirements engineer at Lockheed Martin — and in recent years has become known as a co-author, speaker, and family historian devoted to keeping her mother’s story accurate.

Early Life and Family

Joylette was born in the United States to Katherine Johnson and James Francis Goble. Her exact birth date has not been publicly disclosed; biographical sources estimate she was born around 1940, which would place her in her eighties today. She grew up with two younger sisters, Constance Goble and Katherine “Kathy” Goble Moore, in a household where education was treated as sacred.

Illustration of a mother and daughter silhouette under a starry sky with orbital trajectory lines

The family faced profound loss early: James Francis Goble died in 1956, when Joylette was still young. Three years later, Katherine married again — to James A. “Jim” Johnson, a U.S. military veteran — a marriage that would last more than 60 years until his death in 2019. Katherine Johnson herself passed away in 2020 at the age of 101. Growing up, Joylette watched her mother break racial and gender barriers at NASA while holding the family together — an example she has cited as the foundation of her own discipline and work ethic. For another family story rooted in determination, read about Charlotte Jones.

Education

Education was the family currency, and Joylette spent it well. She earned her bachelor’s degree in mathematics from Hampton University — the same historically Black university tied to generations of African-American achievement — and later completed a master’s degree from Drexel University in information systems. That combination of pure mathematics and applied computing would define her professional life, just as mathematics had defined her mother’s.

Career: From NASA to Lockheed Martin

Joylette followed her mother into the world of aerospace mathematics, joining NASA’s Langley Research Center in Hampton, Virginia — the very center where Katherine Johnson had done her historic work. According to biographical profiles, Joylette spent more than 30 years at NASA as a mathematician and computer specialist, supporting flight research and space mission data analysis.

After her NASA career, she moved into industry as a Senior Requirements Engineer at Lockheed Martin, one of America’s largest defense and aerospace contractors, before retiring. It is a career arc that mirrors a generation of Black women engineers who entered technical fields when few doors were open — and held them open for those who followed.

Preserving Katherine Johnson’s Legacy

In retirement, Joylette took on the role she is best known for today: guardian of her mother’s story. She co-authored My Remarkable Journey (2021), Katherine Johnson’s memoir, ensuring the account came from the family itself rather than Hollywood dramatization. She also co-authored One Step Further (2021), a children’s book published by National Geographic Kids that introduces young readers to her mother’s life.

As of recent reports, Joylette lives in Mount Laurel, New Jersey, and continues to appear at schools, ceremonies, and educational events honoring Katherine Johnson — building dedications, documentary screenings, and STEM panels. Those who have seen her speak describe a calm, dignified presence and a clear mission: that the next generation understands not just what her mother calculated, but what it cost her to calculate it.

FAQs About Joylette Goble

Who is Joylette Goble?

Joylette Goble (later Joylette Goble Hylick) is the eldest daughter of NASA mathematician Katherine Johnson and her first husband, James Francis Goble. She is a former NASA mathematician and Lockheed Martin engineer, and co-author of her mother’s memoir.

What did Joylette Goble do at NASA?

She worked at NASA’s Langley Research Center for more than 30 years as a mathematician and computer specialist, supporting flight research and space mission data analysis.

Where did Joylette Goble go to college?

She earned a bachelor’s degree in mathematics from Hampton University and a master’s degree in information systems from Drexel University.

What books has Joylette Goble written?

She co-authored My Remarkable Journey (2021), Katherine Johnson’s memoir, and One Step Further (2021), a National Geographic Kids book.

Is Joylette Goble still alive?

Yes — as of 2026, Joylette Goble Hylick is reported to be alive, living a largely private life while continuing to participate in events honoring her mother’s legacy.