Gender: boy
School:
School #13A
When no direct results came up for Mosze Fiszheldler, I did a fuzzy search for M* Fiszheldler and came up with two results. Moszek was not only the closest name match, but he was also the only one born in a year that would have made him the right age to attend School #13A.
I found one relative of Moszek, his mother (Ruchla, b. 1895).
Both Moszek and Ruchla were deported on July 1, 1942, although there is no deportation in Secondary Sources to correspond with this date, so their fates remain unclear.