Letter from Rebecca Gratz to Isaac Leeser;August 31, 1862 A letter from Rebecca Gratz to Reverend Isaac Leeser, written on August 31, 1862 in Philadelphia, PA. Gratz offers Leeser a piece of writing she believes is worthy of preservation for the Occident, a publication Leeser was involved with. She states that she does not know the author of the piece.