Through the lens of the Talmudic concept of "three names" that define a person's essence, Dr. Louis M. Epstein emerges as a transformative figure in twentieth-century American Judaism. This memorial tribute, delivered at his 1949 funeral service and published in Conservative Judaism, traces Epstein's evolution from a young scholar at the Yeshivah of Slabodka to an influential American rabbi. His first "name" reveals deep roots in traditional Jewish education and Musar ethics, while his second "name" encompasses his distinguished leadership at Congregation Kehillath Israel in Boston and his broader impact on Jewish scholarship. The third and most intimate "name" illuminates Epstein's internal spiritual journey - from youthful idealism through periods of questioning to ultimate fulfillment in his Boston ministry. Drawing on traditional rabbinic frameworks, the eulogy examines Epstein's steadfast dedication to Jewish law, his significant literary contributions, and the profound influence of his partnership with his wife Minnie. The tribute situates Epstein's legacy within the greater arc of Jewish spiritual and intellectual tradition, concluding with traditional imagery of eternal peace.