Chestor Greenwood

Kid inventor Chestor Greenwood didn't let dropping out of grammar school keep him from pursuing his invention ideas. When he was fifteen years old, he came up with the idea for earmuffs. His grandmother sewed the first pair with wire hoops and fur. He called his invention "Greenwood's Champion Ear Protectors."

The ear protectors made Greenwood rich during Word War I and remain the most famous of Greenwood's many patented inventions.