Johannes_Marquart

Johannes Anton Marquart (born 27 September 1909 in Erolzheim in Germany) was a German actuarial and insurance mathematician. During World War II, Marquart was employed into the Germany Army Inspectorate 7/VI, in 1940, which later became the General der Nachrichtenaufklärung. He eventually became head of Referat Ia of Group IV of the organization in November 1944 engaged in research into German Army hand cryptographic systems. Prior to that period Marquart had been chief cryptanalysis in KONA 5.