Bartels (2016年8月22日). “The unbelievable life of the forgotten genius who turned Americans' space dreams into reality”. Business Insider. Business Insider Inc.. 2017年3月2日閲覧。 “In 1961, on the strength of Johnson's work, Alan Shepherd became the first American to go into space. Johnson calculated his trajectory, the path he would take from launch to landing. If she was wrong, the best case scenario was that NASA wouldn't have known where to pick him up.”
Smith, Yvette (2015年11月24日). “Katherine Johnson: The Girl Who Loved to Count”. NASA. 2019年2月12日時点のオリジナルよりアーカイブ。2016年2月12日閲覧。 “Her calculations proved as critical to the success of the Apollo Moon landing program and the start of the Space Shuttle program, as they did to those first steps on the country's journey into space.”
Shetterly (2016年12月1日). “From Hidden to Modern Figures – Katherine Johnson Biography”. NASA. NASA. 2017年3月1日閲覧。 “By thirteen, she was attending the high school on the campus of historically black West Virginia State College. ... enrolled in the college itself, where she made quick work of the school's math curriculum and found a mentor in math professor W. W. Schieffelin Claytor, the third African American to earn a PhD in Mathematics. Katherine graduated with highest honors in 1937 and took a job teaching at a black public school in Virginia.”
Yvette Smith: “Katherine Johnson: The Girl Who Loved to Count”. NASA. NASA (2015年11月24日). 2017年3月1日閲覧。 “Fascinated by numbers and smart to boot, for by the time she was 10 years old, she was a high school freshman – a truly amazing feat in an era when school for African-Americans normally stopped at eighth grade for those who could indulge in that luxury. Katherine skipped several grades to graduate from high school at 14 and from college at 18.”
“Katherine Coleman Goble Johnson”. School of Mathematics & Statistics University of St Andrews, UK. School of Mathematics & Statistics University of St Andrews, UK. 2017年3月1日閲覧。 “Excerpt from W. Warren, Katherine Coleman Goble Johnson, in Black Women Scientists in the United States (Indiana University Press, 1999), 140–147.”
J. J. O'Connor (2020年2月). “Katherine Coleman Goble Johnson”. School of Mathematics & Statistics University of St Andrews, UK. School of Mathematics & Statistics University of St Andrews, UK. 2018年6月22日時点のオリジナルよりアーカイブ。2020年2月26日閲覧。
Smith, Yvette (2015年11月24日). “Katherine Johnson: The Girl Who Loved to Count”. NASA. 2019年2月12日時点のオリジナルよりアーカイブ。2016年2月12日閲覧。 “Her calculations proved as critical to the success of the Apollo Moon landing program and the start of the Space Shuttle program, as they did to those first steps on the country's journey into space.”
J. J. O'Connor (2020年2月). “Katherine Coleman Goble Johnson”. School of Mathematics & Statistics University of St Andrews, UK. School of Mathematics & Statistics University of St Andrews, UK. 2018年6月22日時点のオリジナルよりアーカイブ。2020年2月26日閲覧。
