The Royall House & Slave Quarters presents the program, "The Last & Living Words of Mark: Following the Clues to the Enslaved Man’s Life, Afterlife, and Community." Mark was an enslaved Charlestown blacksmith, husband, and father. Accused of petit treason after he and co-conspirators were discovered in the poisoning death of their enslaver John Codman, in 1755 Mark was tried and found guilty, hanged, and gibbeted. Twenty years later, Paul Revere mentioned the gruesome landmark “where Mark was hung in chains”…