On 22 September 1988 deputy district prosecutor Ryszard Wiączek (MA) from the District Prosecutor’s Office in Węgrów, delegated to the Commission for the Investigation of Hitlerite Crimes in Białystok, proceeding in accordance with the provisions of Article 4 of the decree of 10 November 1945 (Journal of Laws No. 51, item 293) and Article 129, without the participation of a reporter, interviewed the person named below as a witness. Having been advised of the criminal liability for making false statements, the witness confirmed with her own signature that she had been informed of this liability (Article 172 of the Code of Criminal Procedure). The witness then testified as follows:
| Name and surname | Cecylia Borkowska, née Postek |
| Parents’ names | Stanisław and Julianna, née Pietrak |
| Date and place of birth | 20 April 1930, Stoczek Węgrowski, Siedlce voivodeship |
| Place of residence | Stoczek Węgrowski, Leśna Street 15, Siedlce voivodeship |
| Occupation | employee of the Communal Cooperative in Stoczek |
| Education | elementary |
| Criminal record for perjury | none |
| Relationship to the parties | none |
I have lived in Stoczek Węgrowski (Siedlce voivodeship) since I was born. My mother’s name was Julianna, and my father’s – Stanisław. My brothers were Henryk and Wacław, and my sisters Zofia and Maria. Throughout the entire occupation we were living in Stoczek and during this period my mother and father were sheltering Jews. For this the Germans killed my mother [and] arrested my father and brothers. Only myself and my sisters were unharmed. With regard to the above in March 1988 I submitted an application to the Main Commission for the Investigation of Hitlerite Crimes in Poland with the seat in Warsaw, [in which] I precisely described these events. As I recall, it was in 1942 and I was 12 years old. My parents were sheltering Jews in their buildings. Initially, my dad received four Jews, but more joined them and ultimately there were about 18 people. They were sheltering in two locations; one [was] a cellar used for storing potatoes and the other was a hideout under the barn. My parents fed those Jews. I didn’t know the names of these people, but my father knew some [of them]. I recall that one was called Majorek and came from Stoczek. They were inmates of Treblinka who escaped after the revolt in the camp and were hiding at our place. There were also several Jews from Warsaw, but I do not recall their last names. I remember hearing the name Hajkiel, he was also sheltered by my parents in these dugouts. Not just my parents, but [also] my brothers Henryk, Wacław and Franciszek, helped shelter those Jews by supplying them with food. Our entire family participated in supporting those Jews, I was also helping deliver food to the hideouts. I clearly recall that in September 1942 or 1943 as I was about to head home from school with my youngest brother, Mrs. Zofia Kościukiewicz found us and told us to go stay with our close relatives. My brother and I went to the Postek family, who lived in Marianów (Stoczek commune). We spent a week there and later I also stayed with a relative of mine, Mrs. Sieradzka, who now lives in Łochów, while my brother remained in Marianów. Then my brother Jerzy was joined by my brother Franciszek. My two older sisters, Zofia and Maria, escaped to Warsaw from Stoczek. In October 1942 we returned to our place of residence and were taken care of by our eldest sister, 20-year- old Maria, with some help from our uncle. I learned that the Germans arrived at our house, discovered the Jews, and then killed and buried them right then and there. The Germans also killed my mother on the spot. They took away my father and transported my two brothers, Henryk and Wacław, to Pawiak prison in Warsaw. The Jews were buried in the yard. My mother was buried in the cemetery in Stoczek. My brothers Henryk and Wacław returned home that November, but my father was deported to Auschwitz by the Germans. My father never returned from the camp and perished there. I do not know who buried the Jews after they were murdered by the Germans. I am aware, however, that their bodies were exhumed after liberation in 1949, including by Jan Gierej, a resident of Stoczek.
My mother was buried by my uncle Józef Burczak, who passed away several years ago. The surviving members of my family include Maria Postek, resident of Stoczek Węgrowski, my brother Jerzy Postek, resident of Stoczek, Franciszek Postek, resident of Stoczek, and Józef Postek, resident of Gdynia, who’s exact address I do not know, because I don’t visit him often. I have never testified in this case before. I would like to reiterate that our whole family was helping Jews hide in our home and that was the reason my mother was killed by the Germans and my father [was] deported to Auschwitz, where he perished. My brothers Henryk and Wacław returned, but were re-arrested the following year and deported to an unknown destination. Still to this day I do not know where my brothers were deported to and where they perished. That is the end of my testimony in this case. I have signed the report after having confirmed it is consistent with my testimony.