James Barry
Although Barry lived his entire adult life as a man, it is now believed that he was known as female in childhood, and disguised his sex all his adult life. Barry's work, which saved, and helped thousands of lives by improving treatment of wounds to stop amputations, would not have been possible as a woman, because women could not attended medical school or enter the army. Barry's biological sex only became known to the public and to his military colleagues after his death, when his body was examined.