Dora Zylberberg was the sister of Chaim Michael Zylberberg, a leading figure in the Mizrachi group of religious Zionists in Bedzin. She and her sister-in-law Tauba were close friends. They supported the establishment of a Jewish state in Israel. Neither Dora nor Tauba were able to see that dream become a reality, as they did not survive the Holocaust.
The Mizrachi began meeting at a prayer house in Bedzin at the end of the 19th century. After World War II, the prayer house was converted into an apartment. In 2004, Adam Szdlowski discovered the remains of the prayer house. After three years, the building was entered into the heritage register. In it, there are decorations that show the Holy Land and symbols of the 12 tribes of Israel. The colorful art had been buried under coalfor many years. There are plans to begin restoration of the prayer house.