The Lord Privy Seal is the fifth of the Great Officers of State in the United Kingdom, ranking beneath the Lord President of the Council and above the Lord Great Chamberlain. Originally, its holder was responsible for the monarch's personal (privy) seal until the use of such a seal became obsolete. Though one of the oldest offices in European governments, it has no particular function today because the use of a privy seal has been obsolete for centuries; it may be regarded as a traditional sinecure, but today, the holder of the office is invariably given a seat in the Cabinet of the United Kingdom, and is sometimes referred to as a minister without portfolio.

Ernest Bevin was a British statesman, trade union leader and Labour Party politician. He cofounded and served as General Secretary of the powerful Transport and General Workers' Union from 1922 to 1940 and served as Minister of Labour and National Service in the wartime coalition government. He succeeded in maximising the British labour supply for both the armed services and domestic industrial production with a minimum of strikes and disruption.