The information is derived indirectly from Yad Vashem testimonies, where Khaia is the submitter of two testimonies as "sister" of Hadasah and Chaim Herszkowicz,who appear to have the same father and mother than my grand father, Jozef Herszkowicz.
In early 1960, I had met a sister of my grandfather. She lived in Haifa, was married to Sholem (?) Rubin, and had 3 childtren: Dany, Edna and Amy. However I knew this sister as "Aunt Ella". If anybody has any infomation about Khaia or Ella Rubin,please share!
Thank you very much,
Elizabeth Caplun