Harriet Tubman (c. 1822-1913) was a "conductor" on the Underground Railroad. After escaping from slavery herself in Maryland, she escorted more than 300 slaves to freedom in Canada, despite numerous risks to her own life.
Jessie Leanne Preston MacAlpine (b. 1995) was awarded best of category and ﬁrst place in the 2013 Intel International Science and Engineering Fair for her medicine and health sciences project. She attends the Huron Park Secondary School, Woodstock, Ontario, Canada.