Sarah Collins was a 16-year-old schoolgirl from Lake Mills, Wisconsin, who was an orphan along with her brother Mason. She enlisted as a soldier in a Wisconsin regiment with her brother during the American Civil War. Although she disguised herself as a man by cutting off her hair and donned men's clothing, her sex was suspected because of how she put on her shoes and socks. She was discovered to be female before her regiment left for the front. Wikipedia
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