Daniel Gibson Harris (1915–2007) was an accountant, a British agent during World War II and a writer on Swedish naval history.
He was born in Great Missenden, Buckinghamshire, England and, after attending Sherborne School, trained as a chartered accountant.
During Operation Rheinübung, together with his superior, Captain Henry Denham, he obtained details of the current position of the Bismarck[2] - this information then led to its chase and eventual sinking by the British Navy.
[1] Towards the end of his life, he wrote and published a memoir, Observed Secretly: Northern Window about his experiences during the War.
[3] After the war, Harris remained in Stockholm for a while as an employee of the English Steel Corporation, and then moved first to New York City and then to Alberta, Canada.