Sources: Friendship 7 Model https://nasa3d.arc.nasa.gov/detail/friendship-c2 Dorothy Vaughan Portrait: https://www.nasa.gov/sites/default/files/styles/side_image/public/thumbnails/image/youngdorothyvaughan.jpeg?itok=sSWS3yi_ Mary Jackson Portrait: https://www.nasa.gov/sites/default/files/thumbnails/image/lrc-1977-b701_p-04106_0.jpg Katherine Johnson: https://www.nasa.gov/sites/default/files/thumbnails/image/johnsonk.jpg