Years: 1924–2011
Primary city: Brooklyn
Rabbi Menashe Klein was a Chasidic rebbe and posek whose halachic responsa were widely consulted across the postwar Orthodox world. He led the Ungvar kehillah and founded Yeshiva Beis Shearim. His multi-volume Mishneh Halachos together with additional sefarim on halacha and mitzvos established him as a significant contemporary halachic authority.