An official Path Through History Site! The Gerrit Smith Estate National Historic Landmark is of national significance for the Underground Railroad, antislavery, suffrage and reform activities of Gerrit Smith, including his support of John Brown. It tells the stories of the 19th C. reformers who came to Peterboro to meet with Smith and of African-Americans who came for freedom. The 1804 Gerrit Smith Land Office has displays on the Smith family and estate and abolition activities. Smith believed that his wealth was a gift to be shared with oppressed individuals.