In the antebellum era, many of the county's residents were opposed to slavery, including Lutherans, Quakers and Methodists. The county was a stop on the Underground Railroad, for which volunteers aided refugee slaves en route to freedom in the North. People gave them safe places to stay and often food and clothing. Levi Coffin, among the founders of the "railroad," was a Guilford County native. He is credited with personally helping more than 2,000 slaves escape to freedom before the war.