Without these women, man would not have walked on the moon

Numerous unsung women, from computer engineers and mathematicians to secretaries and seamstresses, helped put a man on the moon. Here are the stories of some of those women

All 12 people who walked on the moon were men. But among the 400,000 people who made it possible, there were numerous unsung women, from computer engineers and mathematicians to secretaries and seamstresses. Today, as America contemplates a return to the moon, there is resolve to ensure women aren't in the background, but are instead the astronauts leading the way. Fifty years after Apollo, David Smith tells the stories of some of the women who helped put a man on the moon.