Harriet Tubman was born a slave in 1820. She escaped as a young woman an made her way to St. Catharine's, Ontario but returned to the United States nineteen times working as a "conductor" on the "Underground Railroad." When the American Civil War started, she returned to the U.S. to work as a nurse and scout for the Union side.
Library and Archives Canada
Wilbur H. Siebert, The Underground Railroad from Slavery to Freedom, The Macmillan Company, 1898
1850s or 1860s
Unknown, “Harriet Tubman,” Black History In Canada, accessed October 18, 2018, http://blackhistoryincanada.ca/items/show/23.