. "Lidia Kleinman Siciarz collection"@en . . "folder\n\n1"@en . "Contains five typed letters by Mother Tekla Budnowska to Lidia Kleinman Siciarz and a typed manuscript written by Father Cezar about the clandestine Gymnasium in Kostowiec, active from October 8, 1944, until May 1, 1945."@en . . . . . "United States Holocaust Memorial Museum"@en . . . "irn502332" .