Avraham Yitchak Bloch was born in 1891 into a Jewish family and was the second son of Rabbi Yosef Leib Bloch, the Rosh yeshiva of Telz.
Avraham Yitchak Bloch was born in 1891 into a Jewish family, and he was the second son of Rabbi Yosef Leib Bloch, the head rabbi of Telz.