מנחם מנדל זקס

Menachem Mendel Yosef Zaks, commonly known as Rabbi Mendel Zaks, was a prominent Lithuanian–Jewish Orthodox rabbi and professor in Byelorussia, Poland, and the United States, best known for being the professor of Talmudic studies at the Raduń Yeshiva, and being the son-in-law to Yisrael Meir Kagan, the Chofetz Chaim.