One of the untold stories of World War II is the guarding of Greenland and its coastal waters, where the first U.S. capture of an enemy ship took place. For six months in 1942 and against standing orders of the time, Thaddeus Nowakowski (now Novak) kept a personal diary of his service on patrol in the North Atlantic. Supplemented by photos from his last surviving shipmates, Novak’s diary fills a void in the story of American sailors at war in the North Atlantic. It is the only known diary of an enlisted Coast Guard sailor to emerge from WWII.