Commander Stephen King-Hall fought at the Battle of Jutland in the First World War and left the navy to write full time. His novel Bunga Bunga (1933), in which a colonial governor, Sir Montagu Thumpeter, is suspected of infidelity by his wife, was filmed as Tropical Trouble in 1936. His plays included The Republican Princess (1933), in which Princess Helen of Valiaz repudiates her royal family for democracy and Number 10 Downing Street (1948).The 1929 premiere of his play The Middle Watch starred a young Joan Hickson. He also edited Mine - "a magazine for all who are young"and the K-H Newsletter Service, which was sent out personally signed.
In 1939 King-Hall succeeded Sam Rowsbotham as National Labour MP for Ormskirk, but was defeated by Harold Wilson in 1945. In 1947 he founded the Hansard Trust and later became converted to the principles of unilateral disarmament, setting out his views in Defence in the Nuclear Age (1958).