Memorial of the Jewish Congregation of Philadelphia, Pennsylvania Archives. The representatives of the Jewish Congregation requests that the consecration of their Synagogue be formerly sanctioned by the President and Council of the Commonwealth of Pennsylvania. A copy for Rebecca Gratz.; American Philosophical Society
Correspondence from Solomon Meyers-Cohen to Michael and Bernard Gratz. Meyers-Cohen's correspondence is rich with details about life in Philadelphia. He references going to "the Coffee House", updates them on the price of goods, discusses and wishes well Michael Gratz's wife, references to chocolate, some letters are written from New York.; American Philosophical Society
