Yitzchok Adlerstein | Yitzchok Hutner | Knesses Chizkiyahu | Yitzchok Zilberstein | Yitzchok Dovid Groner | Yaakov Yitzchok Ruderman | Levi Yitzchok of Berditchev |
Following the death of Rabbi Spektor in 1896, his son, Rabbi Zvi Hirsch Spektor, renamed the yeshiva that his father had founded in Kovno, Knesses Beis Yitzchok and chose Rabinowitz as the first rosh yeshiva.