He was editor of the University of Pennsylvania Law Review, a leader of the Inter-Collegiate Zionist Society and Menorah, earned numerous undergraduate honors, and received the Gowen Memorial Fellowship for post-graduate studies at the Law School.
The university published his History of Bankruptcy Law and his study on the opinions of Judge Mayer Sulzberger.
Secretary of War Robert P. Patterson appointed him General Lucius D. Clay's advisor on Jewish affairs in June 1947.
[3] Levinthal was a member of the Aids of Zion in Philadelphia when he was young, and ever since he was active in Jewish life and communal causes.
He was also president of the Associated Talmud Torahs of Philadelphia for five years, a director of the Federation of Jewish Charities and the Allied Jewish Appeal of Philadelphia for many years, a trustee of Congregation Mikveh Israel, a director and executive committee member of the non-sectarian Public Charities Association of Pennsylvania and the United Charities Campaign of Philadelphia, a vice-president of the American Association for Jewish Education, a board member of the United Synagogue of America,[4] and chairman of the board of governors of Hebrew University from 1962 to 1966.