Jerzy Tabeau (18 December 1918 – 11 May 2002), an imprisoned Polish medical student, was one of the first escapees from Auschwitz to give a detailed report to the outside world on the genocide occurring there.
In the summer of 1942 he came down with typhus and was selected by Nazi doctor Dr. Josef Klehr to be included in the list of patients to be killed in the gas chambers.
Tabeau boarded a freight train to Kraków, while Cieliczko joined a partisan unit but was killed by German troops in a sabotage operation three months later.
In March, on the orders of the Underground, he left Kraków on a mission to London to give testimony in person about the Polish resistance and confirm to the Allies the truth about the Nazi genocide.
Reports of the German genocide were emerging, including the 10 December 1942 address by the Polish Government in Exile to the League of Nations, and evidence from escaped Jewish inmate from Majdanek, Dionys Lenard.
It was copied using a stencil machine in Geneva in August 1944, and was distributed by the Polish government-in-exile and the Bratislava Working Group, reaching Czechoslovak diplomat Jaromír Kopecký in Switzerland.
Witold's report was translated into English but was filed away by the British government with a note appended stating there was no indication as to the source's reliability.
Natalia Zarembina assembled testimony from another Polish escaper and others into a report entitled "Auschwitz—Camp of Death" which was published in English in 1943 in London.