Approver Comments:
I agree that this is the student who most likely signed the album. In 1941 he would have been 9 years old, the right age to attend school #20a. In the future, please leave a comment for your fellow researchers as to why you believe this is the right person.
Also curious as to why you entered the name twice from two different databases, if you found the name using the tool HSV in the database Lodz Ghetto Inhabitants. Please also enter the full address you found, including street and apartment numbers. Note in the research notes field that this is an AM address, suggesting that Dawid lived at this address prior to and immediately after the establishment of the ghetto.
As soon as you make these minor changes, I'll be able to confirm your research and we can move ahead. Thanks!