Governor of P.W. Island (Singapore and Malacca) to Captain Barker, Senior Naval Officer in the Straits of Malacca, 1851-04-02 Unit ID: Bar D 801/49 Date: 1851-04-02
Governor of P.W. Island (Singapore and Malacca) to Senior Naval Officer (Straits of Malacca), 1851-02-03 Unit ID: Bar D 801/47 Date: 1851-02-03