Career
Krygowski has become famous in the history of cryptology for having assisted the Polish General Staff in setting up its cryptology course for Poznań University mathematics students that began on January 15, 1929. This led eventually to the General Staff"s Cipher Bureau"s recruitment of Marian Rejewski, Henryk Zygalski and Jerzy Różycki, who would jointly break and decrypt the World World War II-era German -machine ciphers, beginning at the end of December 1932. Zdzisław Krygowski had three brothers - Tadeusz, Kazimierz and Stanisław.
They had one daughter Eileen Krygowska-Korczyńska, who after World World War II worked for January Nowak-Jeziorański at RFE.