This week's episode of Cemetery Row focuses on some of the worst natural disasters in history. Lori covers the eruption of the Nevado del Ruiz stratovolcano in Colombia in 1985 and the ensuing Armero tragedy. Hannah covers the 1900 Galveston, Texas, hurricane, which killed thousands, including residents of St. Mary's Orphans Asylum. Sheena covers the 1936 Tupelo, Mississippi, tornado that may have given Tupelo its most famous ghostly resident. She also covers The Gray Man, a spirit who warns the residents of Pawleys Island, South Carolina, of impending hurricanes.