R. Hillman devoted himself to the Talmud and the halakhic midrashim. He wrote on practically every tractate of the Babylonian Talmud, including the minor tractates (6 vols., 1921–45), tractates of the Jerusalem Talmud (2 vols., 1947–48), all the halakhic Midrashim (2 vols., 1949–50), and the Yad ha-Hazakah of Maimonides. These works are of special importance to the scholar as they include references to all the relevant novellae scattered through the extensive responsa literature. A volume of sermons also appeared under the same title. Hillman had two children, David, London portrait artist and worker in stained glass, who was an active Zionist, and Sarah, who married R. Isaac ha-Levi Herzog.

עמ' [77]-144, עם שער קצר: קונטרס לספר אור הישר על מסכת בכורות מחתן המחבר שליט"א הנקרא בשם דברי יצחק.

על מסכת חולין, מאתי שמואל יצחק הילמן למונדון ...