Letters from California Three letters, were anonymously mailed from the Pueblo de Yerba Buena, dated between June 10th and June 29th 1846. The letters were, and probably still are, quite the mystery, not only because no one definitively knows who wrote them, but for the depth of military knowledge the writer had about the happenings in Alta California. Another point of personal interest, the letters were written from our own backyard, Yerba Buena. Hubert Howe Bancroft considers these...