ship References The Battle of the North Atlantic 1939-1943, by Samuel Eliot Morison, A Measureless Peril, America in the fight for the Atlantic..., by Richard Snow, External links US Navy Armed Guard Veterans/Memorial Web Site Arming of Merchant Ships and Naval Armed Guard Service (US Naval Administration in World War II, Vol. 172) History of the Naval Armed Guard Afloat, World War II (US Naval Administration in World War II, Vol. 173) United States Navy organization United States Navy in World War II