In 1941, Ken Sargant, left school at 15 and found work in a London drawing office. His team were told they were to design concrete barges for the transportation of wheat, but it later emerged that these barges were in fact constructed for the Mulberry floating harbour – assembled as part of the follow up to the Normandy landings during World War II.
At 17, Ken volunteered to join the RAF, but was later demobilised because, being a draftsman, his skills were needed to help with the post-war rebuilding of London.