Gender: boy
School:
School #13A
Changed addresses on 11.6.44
There is also an Elejzor Dawid Gancarski, listed as born on the same day as Elizer and living at Am-Bach 29 #49. I believe that these are the same people. In 1941 he would have been 10 years old, the right age to attend school #13A.
I was able to say MOJZESZ GANCARSKI is the brother because they lived at the same exact two addresses and moved on the same date.