Joylette Goble: The Life of Katherine Johnson’s Eldest Daughter

Joylette Goble — known today as Joylette Goble Hylick — is the eldest daughter of Katherine Johnson, the NASA mathematician whose calculations helped send the first Americans into space and whose story reached millions through the 2016 film Hidden Figures. Born around 1940, Joylette followed her mother into mathematics, worked at NASA’s Langley Research Center herself, and later became a senior requirements engineer at Lockheed Martin before retiring.

That last part surprises most people. The daughter of NASA’s most famous “human computer” didn’t just inherit a legacy; she worked in the same building where her mother made history.

Since Katherine Johnson’s death in February 2020, Joylette has become the most visible keeper of her mother’s story, co-authoring books, unveiling memorials, and speaking to schoolchildren about the woman she simply called Mom. Here’s her full story, fact-checked against news reports, official obituaries, and publisher records — because a surprising amount of what’s published about this family online is wrong.

Who Is Joylette Goble? Quick Facts

Early Life: Growing Up in the Goble Household

Joylette Goble was born around 1940, the first of three daughters of Katherine Coleman Goble and James Francis Goble, who had married in November 1939. Her father taught chemistry; her mother, years before NASA, taught math, French, and music at a segregated high school in the Bluefield, Virginia area, where the young family first put down roots.

Two sisters followed: Constance (“Connie”), born in April 1943 in White Sulphur Springs, West Virginia, and Katherine (“Kathy”), named after their mother.

In the early 1950s, the family moved to Newport News, Virginia, when Katherine took a job as a “human computer” at NACA, the agency that became NASA in 1958. Nobody in the house treated it as historic. For decades, even the daughters didn’t grasp what their mother’s calculations meant. As Kathy later put it in an interview, “I knew my mother worked at NASA. Growing up, we knew she was smart. But she was Mom.”

The household ran on three things: education, faith, and music. Katherine quizzed her daughters at church, posed math problems at the dinner table, and taught them practical skills like sewing. All three girls played instruments. Joylette earned a partial music scholarship to Hampton and played the grand piano and organ at the university’s Ogden Hall.

Losing Her Father at Sixteen

In December 1956, James Francis Goble died of an inoperable brain tumor. Joylette was a teenager. Her parents had shielded the girls from the severity of his illness, which made the loss hit harder.

Katherine kept working at Langley while raising three daughters alone, a masterclass in resilience her eldest daughter watched up close. Three years later, in 1959, Katherine married Lieutenant James A. “Jim” Johnson, a Korean War veteran she met at choir practice at Carver Memorial Presbyterian Church in Newport News. Their marriage lasted 60 years, until his death in March 2019 at age 93.

Education: Hampton and Drexel

Joylette studied mathematics at Hampton University (then Hampton Institute), the historically Black university in Virginia, entering around 1958. Math wasn’t a rebellious choice or a forced one; it was the family language.

She later earned a master’s degree from Drexel University in Philadelphia, adding formal training in technical systems to her mathematics foundation. That combination — pure math plus applied systems thinking — set up the career that followed.

Joylette Goble’s Career: NASA and Lockheed Martin

Here’s the detail that separates Joylette from most “celebrity family member” stories: she built a serious aerospace career of her own.

According to her official publisher biography, Joylette worked at NASA as a mathematician at Langley Research Center, the same Hampton, Virginia facility where her mother spent 33 years. She quite literally followed in Katherine Johnson’s footsteps down to the campus.

She then moved to Lockheed Martin, one of the world’s largest aerospace and defense companies, where she worked as a senior requirements engineer, a role focused on defining and verifying the technical specifications complex systems must meet. It’s meticulous, unglamorous, essential work. Which, if you know anything about her mother, sounds familiar.

At a 2021 library talk, a journalist covering the event noted that Joylette herself had become “the girl,” the nickname astronaut John Glenn used for Katherine Johnson, by following her mother into NASA and Lockheed Martin before retiring.

She is now retired and lives in Mount Laurel, New Jersey.

Her Sisters: Constance and Kathy

Constance Goble (1943–2010)

Connie, the middle daughter, was the family’s free spirit. After graduating from Carver High School in 1961, she worked in education and later ran her own trucking business. She had three children, Katherine Michele, Gregory, and Douglas Boykin. Constance died on May 4, 2010, at Mary Immaculate Hospital in Newport News, aged 67 — six years before Hidden Figures brought the world to her mother’s door.

Katherine “Kathy” Goble Moore

The youngest daughter carries her mother’s name. Kathy earned a Master of Science in Information Systems from Montclair State University and spent 33 years in public education as a teacher and guidance counselor. She lives in Greensboro, North Carolina.

One correction worth making, because several websites get this badly wrong: Kathy Moore did not die in 2019. Some articles confuse her with Jim Johnson, the stepfather, who did die in March 2019. Kathy is listed as a surviving daughter in Katherine Johnson’s official February 2020 obituary, co-authored two books published in 2021, and appeared alongside Joylette at the Bluefield, Virginia, memorial plaque ceremonies as recently as August 2025. The two surviving sisters keep the family legacy together.

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Life After Hidden Figures: Guarding a Legacy

The 2016 film changed everything for the family. Katherine Johnson, then 98, became a global icon almost overnight. Joylette and Kathy took on the job of preparing their mother for the wave of appearances that followed the premieres, tributes, and the Presidential Medal of Freedom spotlight (awarded by President Obama in 2015).

Joylette was there for the landmark moments:

• December 2016 — the unveiling of Annie Leibovitz’s portrait of her mother at the Smithsonian’s National Museum of African American History and Culture, ahead of a Hidden Figures screening.
• 2017 — the ribbon-cutting for the Katherine G. Johnson Computational Research Facility at NASA Langley. Joylette later recalled her mother whispering, “It would have been nice to have it named after the team.”
• February 2020 — Katherine Johnson died peacefully in her sleep at 101 in Newport News. NASA’s administrator called her “an American hero.”

Books and Speaking

After her mother’s death, Joylette’s role shifted from supporter to storyteller. She co-authored One Step Further (January 2021), a children’s book written with her mother and sister Kathy, illustrated by Charnelle Pinkney Barlow. She also helped bring her mother’s posthumous memoir, My Remarkable Journey (2021), to publication.

She speaks at schools, libraries, and STEM programs, often repeating her mother’s advice: “Have a dream, and stay with it.” In August 2025, she and Kathy traveled back to Bluefield, Virginia — 70 years after the family left — for the unveiling of two historical plaques marking their mother’s teaching career and the site of the old family home. “People all over the world are still being inspired by mom and her story,” Joylette told local news at the ceremony.

Is Joylette Goble Still Alive?

Yes. As of 2026, Joylette Goble Hylick is alive and in her mid-eighties, living privately in Mount Laurel, New Jersey. She stays out of the media except for events honoring her mother’s legacy, most recently the 2025 Bluefield ceremonies. Katherine Johnson’s obituary records six grandchildren and eleven great-grandchildren, a family still growing around the values she set.

FAQs About Joylette Goble

Who is Joylette Goble?

Joylette Goble Hylick is the eldest daughter of NASA mathematician Katherine Johnson, the central figure of Hidden Figures. Born around 1940, she became a mathematician herself, working at NASA Langley Research Center and later as a senior requirements engineer at Lockheed Martin before retiring to Mount Laurel, New Jersey.

Did Joylette Goble work at NASA?

Yes. According to her publisher biography, Joylette worked at NASA as a mathematician at Langley Research Center, the same facility where her mother, Katherine Johnson, calculated trajectories for the Mercury and Apollo missions. She later joined Lockheed Martin as a senior requirements engineer.

How many daughters did Katherine Johnson have?

Katherine Johnson had three daughters with her first husband, James Francis Goble: Joylette (born around 1940), Constance (1943–2010), and Katherine “Kathy” Goble Moore. All three pursued careers connected to mathematics and education. Joylette and Kathy survive her and jointly preserve the family legacy.

What books did Joylette Goble write?

Joylette co-authored One Step Further (2021), a children’s picture book about Katherine Johnson‘s life, together with her mother and sister Katherine Moore. She also contributed to My Remarkable Journey, her mother’s memoir published posthumously in 2021.

Is Katherine Johnson’s daughter Kathy Moore still alive?

Yes. Despite incorrect reports on some websites, Katherine “Kathy” Goble Moore is alive; she appeared with Joylette at memorial plaque ceremonies in Bluefield, Virginia, in August 2025. The confusion likely stems from the March 2019 death of their stepfather, Jim Johnson.

Final Takeaway

Joylette Goble’s story could have been a footnote: famous mother, private daughter, end of article. Instead, she quietly repeated the achievement, same field, same NASA campus, and then a senior engineering career at Lockheed Martin, while never competing with the legacy she now protects. When she reads her mother’s words to a room full of schoolchildren, she isn’t just honoring history. She’s proof that it worked.