New Lisbon (OH) Anti-Slavery Bugle, "Slave Stampede," August 2, 1856

  SLAVE STAMPEDE.––A reward of $1,500 is offered this morning for the apprehension of eight negroes, a man and wife, three sons, two daughters and the wife's sister, who disappeared during last night. They are the property of Messrs. R. Walsh and John O'Fallou, Jun; Several other slaves are supposed to be in their company, on the underground track.––St. Louis Leader.