Born in 1841 in New Brunswick, Canada, Sarah ran away from home in her early teens. In order to survive she became an itinerant Bible salesman, by calling herself Frank Thompson and dressing like a man.
In 1861, Frank (Sarah) enlisted in the Second Michigan Infantry and over the next two years not only fought in a number of Civil War battles, but also served as a spy for the Union Army. Solders in her unit called Frank “our woman” because of his feminine mannerisms and his extremely small boot size. However, none of her comrades ever figured out that Frank was really Sarah. This boded well for her spying, where she dressed as a young boy serving in Confederate camps, as an immigrant Irish peddler and, most interestingly, as a woman.
In 1863, Sarah caught malaria and deserted the army out of fear that hospitalization would reveal her true identity. In 1884, though, Sarah applied for and was awarded a veteran’s pension in which the secretary of war acknowledged that Sarah was a female soldier who had rendered faithful services to the ranks.
