Rating this 4 stars partly due to fond feeling for something I initially read 50ish years ago.
Originally published in 1958 its a story of a group of people that were different. And you can guess what happens at least in general. It's a fairly short story that's part of The Future Histories stories and introduces Lazarus Long. Certainly this writing and dialog is 1950's and there is a fair amount of hand waving to move the story along. But I liked it.