From fleeing the Nazi invasion of his native Poland to training as an operative behind enemy lines, Fred Vanke played an active role in the Allied war effort, cracking codes that helped turn the tide of the conflict. Sworn to secrecy, he never told his family or friends about his work.
"My wife died and didn't know. I never told anybody. In fact, she always complained – all your friends, when they come visit, they all have stories to tell and you never tell anything," Vanke said.
Research into Vanke's life has added 27 Polish codebreakers and signals intelligence officers to the Bletchley Park Roll of Honour, with more names potentially to follow. About 100 Poles based in the UK carried out work on behalf of Bletchley Park between 1940 and 1945. The additions help historians better understand the scale of the intelligence partnership between Britain and the Polish government-in-exile.