John Stourton was the younger brother on 25th Lord Mowbray. During the Russian Revolution he travelled to Russia as a member of the North Russian Relief Force, an organization that gave support to the White Army.
A member of the Conservative Party he was elected to the House of Commons for South Salford in 1931. Over the next few years he made several speeches attacking Jewish immigration and praising the achievements of Adolf Hitler in Nazi Germany.
In May 1939 Archibald Ramsay founded a secret society called the Right Club. This was an attempt to unify all the different right-wing groups in Britain. Or in the leader's words of "co-ordinating the work of all the patriotic societies". In his autobiography, The Nameless War, Ramsay argued: "The main object of the Right Club was to oppose and expose the activities of Organized Jewry, in the light of the evidence which came into my possession in 1938. Our first objective was to clear the Conservative Party of Jewish influence, and the character of our membership and meetings were strictly in keeping with this objective."
Members of the Right Club included John Stourton, William Joyce, Anna Wolkoff, Joan Miller, A. K. Chesterton, Francis Yeats-Brown, Lord Redesdale, 5th Duke of Wellington, Duke of Westminster, E. H. Cole, Lord Sempill, Thomas Hunter, Aubrey Lees, Ernest Bennett, Charles Kerr, Samuel Chapman, John MacKie, James Edmondson, Marquess of Graham, Margaret Bothamley, Earl of Galloway, H. T. Mills, Richard Findlay and Serrocold Skeels.