Rabbi Schweitzer is also recognized for the major collection of Jewish Americana that he amassed over twenty-five years. Numbering some 10,000 items, he donated this major collection in 2005 to The National Museum of American Jewish History in Philadelphia. Rabbi Schweitzer's dedication to social service and Jewish causes comes from a long tradition of family commitment. He is the great-grandson of the renowned constitutional lawyer and Jewish civic leader, Louis Marshall, and the grandson of Jacob Billikopf, the nationally recognized leader in social work, Jewish philanthropy and labor negotiation.