Harriet Tubman (born Araminta Ross, March 10, 1913) was an American abolitionist and political activist. Born into slavery, Tubman escaped and subsequently made some 13 missions to rescue approximately 70 enslaved people, including family and friends, using the network of antislavery activists and safe houses known as the Underground Railroad. During the American Civil War, she served as an armed scout and spy for the Union Army. In her later years, Tubman was an activist in the struggle for women's suffrage. Wikipedia
Most popular today Harriet Tubman and Mark Williams Thomas directly after him.