50 American Heroes Every Kid Should Meet, 3rd Edition

How quickly can you name 50 American heroes?They can be men or women, young or old, from the past or present, living or dead, but they all must have made an exceptional positive contribution to our world. Chances are, a few names popped right up: George Washington, Abraham Lincoln, Martin Luther King Jr. After all, they have their own national holidays. Then maybe people you are studying in school...