Their fathers, Rav Simcha Schustal and Rav Don Ungarischer, were good friends, members of an exalted group in the glory days of Bais Medrash Elyon in Monsey, making Rav Dovid Schustal’s visit to Rav Yerachmiel Ungarischer’s Yeshiva Bais Medrash Elyon in Bnei Brak that much more poignant, the Lakewood rosh yeshiva offering divrei hisorerus to the talmidim, while highlighting the zechus they have to learn under their illustrious _rosh yeshiva.