William Johnson, S. J., the writer of the two letters printed below, has hitherto escaped notice by English historians, including Foley, because he was a member of the Andalusian province of the Society of Jesus and spent all his religious life in Spain. He is not to be confused with an earlier William Johnson, also a Jesuit, who died at Malaga in 1614. Some details of the life of William Johnson II can be gleaned from the catalogues of the Andalusian province, from his official obituary, and from other archive sources. The historian of the Andalusian province, Juan de Santibañez, included Johnson in his series of brief biographies of its most distinguished sons, Varones ilustres de la Provincia de Andalucía de la Compañía de Jesús written not long after Johnson’s death in 1642. The work was never published but survives in manuscript.