During filming, a longtime factory hand told Mr. Levine about the townhouse on Pitt Street where Aron Streit and a partner, Rabbi Moshe Weinberger, made matzo from 1916 to 1925, at which point Streit's moved four blocks to its current location and Weinbrger stayed behind, making matzos into the '40s.

WSJ: A Lower East Side Matzo Story, Leavened With History