Gender: girl
School:
School #8B
The Jews from Łódź at Buchenwald database lists an Icek Lebowitsch, born 11 March 1907 in Lodz, transported to Buchenwald, arriving 26 March 1945. Could very well be Bluma's father.
http://resources.ushmm.org/hsv/person_view.php?PersonId=4644814