Robertson, Terence Escort commander : the story of Captain Frederic John Walker / Terence Robertson - Garden City, New York : Nelson, Doubleday , 1979 , c1956. - 202p. : il. maps. Subjects--Personal Names: Walker, Frederic John Subjects--Topical Terms: World War, 1939-1945---Naval operations Dewey Class. No.: 940-54 ROB