Marian Rejewski - A black and white photo of a man in uniform

Marian Rejewski(born on August 16, 1905 in Bydgoszcz, Poland – died on February 13, 1980 in Warsaw, Poland) was a Polish mathematician and cryptologist, helped decipher Enigma. In the photo as second lieutenant (signals), Polish Army in Britain, in late 1943 or in 1944
Polski: Marian Rejewski(urodzony 16 sierpnia 1905 w Bydgoszczy – umarł 13 lutego 1980 w Warszawie) - polski matematyk i kryptolog, pomógł odszyfrować Enigmę.