KATHERINE JOHNSON, world-renowned NASA mathematician and one of the famed "Hidden Figures," was best known for her work that helped send John Glenn into orbit and Apollo 11 to the moon and back. She received the Presidential Medal of Freedom in 2016 and has two separate NASA facilities named in her honor.
JOYLETTE HYLICK followed in her mother's footsteps, working at NASA as a mathematician before taking a job with Lockheed Martin. She lives in Mount Laurel, New Jersey.
KATHERINE MOORE spent 33 years working in public education as an educator and guidance counselor. She resides in Greensboro, North Carolina.

CHARNELLE PINKNEY BARLOW, granddaughter of Caldecott-winning illustrator Jerry Pinkney, was surrounded by art as a child. Her passion for illustration grew after being introduced to the world of watercolors. She received her BFA in Illustration from the University of the Arts in Philadelphia and her MFA in Illustration as Visual Essay from the School of Visual Arts in New York City.