Mary Edwards Walker, was an American feminist, abolitionist, prohibitionist, alleged spy, prisoner of war and surgeon. She is also the only woman ever to receive the Medal of Honor. Mary Walker Became the Army's First Female Surgeon Prior to the American Civil War, she earned her medical degree, married, and started a medical practice. The practice didn't do well, and at the outbreak of the War Between the States, she volunteered with the Union Army as a surgeon. Despite her training, however,...