This Thanksgiving Day prayer was offered by Rabbi Sabato Morais at the end of his sermon at Mikve Israel in Philadelphia on 27 November 1873, and reprinted in The Jewish Messenger on 5 December 1873. It was preserved by Rabbi Morais in his ledger (page 61), an archive of newsclippings recording material he contributed to the press, among other announcements. (Many thanks to the Library of the University of Pennsylvania for helping to make this resource accessible.) . . .