Haya Iren-Shtern was born in Satmar, Hungary in 1920. She was deported with her family to the Sighet ghetto and from there to Auschwitz. Haya survived the selection at Auschwitz and was sent to Sommerda, a satellite camp of Buchenwald, where she worked in a munitions factory.
Haya wrote the text of the Siddur - from memory - on pieces of paper that were used to wrap weapons parts in the factory. After the war Haya immigrated to Canada. Haya’s daughter, Tova Dror, donated the prayer book to Yad Vashem.