Who wrote a story recalling his adventures crossing the St. Lawrence Atlantic Railroad  with fellow students during the American Civil War?
St. Lawrence and Atlantic Railroad The St. Lawrence and Atlantic Railroad (reporting mark SLR) , known as St-Laurent et Atlantique Quebec (reporting mark SLQ) in Canada, is a short line railway operating between Portland, Maine, on the Atlantic Ocean and Montreal, Quebec, on the St. Lawrence River. It crosses the Canada–US border at Norton, Vermont, and is owned by short line operator Genesee and Wyoming.
William Still William Still (October 7, 1821 – July 14, 1902) was an African-American abolitionist in Philadelphia, Pennsylvania, conductor on the Underground Railroad, businessman, writer, historian and civil rights activist. Before the American Civil War, Still was chairman of the Vigilance Committee of the Pennsylvania Anti-Slavery Society, and directly aided fugitive slaves and kept records to help families reunite. After the war, he remained an important businessman and philanthropist, as well as used his meticulous records to write an account of the underground system and the experiences of many refugee slaves, entitled "The Underground Railroad Records" (1872).