Rav Achai bar Rav Huna ZY”A - Amora
Reb Aryeh Leib Sara's, Reb Aryeh Leib ben Sarah and Yosef ZY”A - hidden tzadik and talmid of the Baal Shem Tov. Know by the name of his mother due to the fact that as a young beautiful girl she married an old melamed who was a hidden tzadik. One version of that story is here. It is said that there is an allusion to him in Sefer Raziel Hamalach. Discovered the first Kaliver Rebbe. Many famous stories about him.
Reb Eliezer ben Reb Avrohom Shmuel Gordon ZY”A, Rosh Yeshivas Telz Buried in London