Harriet Tubman, identified here as a "nurse, spy and scout," is the subject of this photographic portrait made between 1860 and 1875. Born enslaved in Maryland, Tubman escaped to freedom in Philadelphia in 1849. She then returned repeatedly to the South to guide other slaves to freedom. During the Civil War, Tubman served the Union army as a scout and a spy, and led an armed expedition to free hundreds of slaves. She became known as the “Moses” of her people.