Governor General Lord Gowrie (centre) signing the Declaration of War on Japan.
Left to Right: Frank Forde, John Curtin, Lord Gowrie, Ben Chifley, Herbert Evatt.

John Curtin Prime Ministerial Library. Records of the Curtin family. Lord Gowrie - Alexander Gore
Arkwright, Baron Gowrie. Signing Declaration of War on Japan (as observed by Cabinet).
December 1941. JCPML00376/102.