The underground rail road : a record of facts, authentic narratives, letters, &c., narrating the hardships, hairbreadth escapes and death struggles of the slaves in their efforts for freedom, as related by themselves or others, or witnessed by the author ; together with sketches of some of the largest stockholders, and most liberal aiders and advisers, of the Road / by William Still, for many years connected with the Anti-Slavery Office in Philadelphia, and ... the Philadelphia Branch of the Underground Rail Road ; illustrated with 70 fine engravings by Bensell, Schell and others and portraits from photographs ...