Becker, Helaine. Counting on Katherine: How Katherine Johnson Saved Apollo 13. New York: Henry Holt and Company, 2018.
Katherine was a child who loved numbers. But in the 1920s and ’30s, girls did not grow up to become mathematicians. So Katherine became a school teacher. Until in the 1950s, she finally got a chance to work for America’s National Advisory Committee on Aeronautics. For 35 years, her calculations of flight-paths helped to safely send astronauts around the world, to the moon, and back again to Earth. She died on February 24, 2020 at 101 years of age. This picture book illustrated by Dow Phumiruk is highly recommended for curious readers 9 years old and up.