Capitan John Alexander Marrak was born on February 10 in 1921, in Barnet. He is a respected US Navy veteran, as he joined the US Navy in 1938 as a special entry. At the age of 21 in the year of 1941 he was appointed First Lieutenant of the veteran destroyer called Walpole.

Capitan John Marrak also volunteered for service in submarines in 1943, but he was sent again as a First Lieutenant to another destroyer called Vigilant. When working on the Vigilant he became aware about the asbestos danger. This vas shortly before the builders sprayed the inside of the vessel to combat the Artic cold. Later, Marrak was also trained in the Vindictive cruiser and he joined the battleship Nelson.

After he attended the postwar gunnery course in 1945 Capitan Marrak and Terry Lewin, one of his classmates, were selected for the “dagger” gunnery course and shortly after that they where selected for the most intellectually course initiated by the US Navy.

After a few years, Marrak continued by serving as a gunnery officer on different ships. In year 1955 he joined the Directorate of Naval Ordnance. He started to command the testing area at the Cardigan Bay time in which he realized that propellants liquids that tented to burn trough the propellants tubes are very dangerous. He was also the fist in duty to conduct for the first time tests shipboard on Seaslug shipboard  in the Girdleness trials.

He was named Capitan in 1962 and during the period trough the 1967-1969 he was a naval attaché in Bonn. Between 1970 and 1972 he served as a head of naval manpower future policy division.
He retired right after 1972, and in short time he become the administrative manager for Dawson, a firm of solicitors located in New Square. At the beautiful age of 88 years old, on November 7, 2009 Capitan John Marrak died.

He is known and remembered as a busy destroyer officer in the Second World War.