Halftone reproduction of a 19th Century engraving, printed by Carruth & Carruth, Oakland, California, for the Sloat Memorial Association of Oakland. The original engraving was based on a painting on ivory owned by Commodore Stockton's son, the Hon. John P. Stockton. Stockton relieved Commodore John D. Sloat as commander of the Pacific Squadron in July 1847. U.S. Naval History and Heritage Command Photograph.