The yeshiva was co-founded by Rabbi Michel Kossowsky, an
Eastern European
Talmudic scholar who had settled in South Africa during
the Holocaust, and Rabbi Joseph Bronner, an alumnus of the
Yeshiva Rabbi Chaim Berlin in Brooklyn, New York, who had settled in South Africa after
World War II and was active in the business world. The yeshiva was named for Rabbi Kossowsky's father, Rabbi Yitzchak Kossowsky, who had preceded him and had served as one of the heads of Johannesburg's
Beth Din ("religious court".) The first full-time instructor of Talmud at the yeshiva was Rabbi David Sanders (rabbi), who was brought out from the
Telz yeshiva in the United States to teach the young students Talmud in the traditional style of the
Lithuanian yeshivas. Sanders helped to bring Rabbi
Avraham Tanzer, also an alumnus of the Telz, to teach at the yeshiva. Eventually Rabbi Tanzer was appointed the
Rosh yeshivah ("dean") of the school, a position which he retained until his death in 2020. Rabbi Tanzer, in turn, brought out Rabbi
Azriel Goldfein (again, a fellow Telz yeshiva alumnus) to be a co-Rosh yeshiva; Rabbi Goldfein eventually left to establish the
Yeshivah Gedolah of Johannesburg. In the 1980s Rabbi
Aharon Pfeuffer similarly taught at the school. The staff today includes Rabbanim from Israeli, American and South African yeshivot, and graduates of several
seminaries, and retains its close association with the
Bnei Akiva youth movement, extending to
Mizrachi, and its local
Kollel Bet Mordechai. ==See also==