Determining the identities of the few survivors of Chełmno had presented ambiguity because records used different versions of their names. One survivor may not have been recorded in the early postwar years because he did not testify at trials of camp personnel. According to the Holocaust Encyclopedia, a total of seven Jews from the burial Sonderkommando escaped from the Waldlager. Five escaped during the winter of 1942, including Mordechaï Podchlebnik, Milnak Meyer, Abraham Tauber, Abram Roj, and Szlamek Bajler (whose identity was later established as Yakov (or Jacob) Grojanowski). Mordechaï Zurawski and Simon Srebnik escaped later. Srebnik was among Jews shot by the Germans two days before the Russians entered Chelmno, but he survived. Yakov (or Jacob) Grojanowski wrote about the operations of the camp in his Grojanowski Report. But Grojanowski was captured and murdered in the gas chamber at Bełżec extermination camp before the end of the war. Other of the escapees who have not been documented since the postwar period likely died during the war