I believe this is the person who signed the album as "Lea Heinrich" and that her name "Heinnych" is the alternate spelling of the last name. Her DOB places her at the end of the spectrum of age range for girls in school #9A and she is listed as "KIND" as her occupation. Additionally, I believe that Pesa Mindla Heinnych and Elja Dawid Heinnych are her mother and father as their DOB puts them in their late 20s (old enough to be her parents) and they all lived at the same address. These persons remained at the Ghetto until they were deported together on 15.3.42.
AG 15.3.42 is the date of deporation for Lea and her parents to Chelmno death camp. According to the secondary sources datasheet, their deportation date falls under March of 1942 where daily deporations occurred from Lodz to Chelmno. The total size of these transports was more than 24,650. These victims, to include Lea and her parents, were killed in gas vans.