Herbrand Edward Dundonald Brassey Sackville, 9th Earl De La Warr, (20 June 1900 – 28 January 1976), styled Lord Buckhurst until 1915 (and sometimes nicknamed "Buck De La Warr" after that), was a British politician. He was the first hereditary peer to join the Labour Party and became a government minister at the age of 23. He was later one of the few Labour politicians to follow Ramsay MacDonald in the formation of the National Government and the National Labour Organisation. However, he ended his political career by serving as Postmaster General in the last Conservative administration of Winston Churchill. Background and education De La Warr was the son of Gilbert Sackville, 8th Earl De La Warr, and Muriel Agnes, daughter of Thomas Brassey, 1st Earl Brassey, eldest son of the railway engineer Thomas Brassey. He was educated at Eton and Magdalen College, Oxford. The son of a Conservative father and Liberal mother, he developed trends towards socialism at university. In 1915 his father was killed in the First World War, and he succeeded to the title as a minor. On reaching 18, he refused as a conscientious objector to take part in active combat, but joined the Royal Naval Reserve (trawler section). Political career De La Warr became the first hereditary peer to join the Labour Party, and in February 1924, then aged 23, was one of the youngest ever ministers when he was appointed Lord in Waiting in the first Labour government of Ramsay MacDonald. He made his maiden speech in the House of Lords the same month. In the second Labour government of 1929 to 1931 he served as Captain of the Honourable Corps of Gentlemen-at-Arms (government chief whip in the House of Lords) and Under-Secretary of State for War between 1929 and 1930, as Parliamentary Secretary to the Ministry of Agriculture and Fisheries between 1930 and 1931 and as a Lord-in-waiting between 1929 and 1931. In 1931, the Labour government fell and MacDonald formed a National Government. De La Warr was one of only a tiny handful of Labour ministers to join it, and before the 1931 general election was instrumental in the formation of the National Labour Organisation to provide a vehicle of support for MacDonald and other ex-Labour members of the National Government. He resumed office as Parliamentary Secretary to the Ministry of Agriculture and Fisheries, a post he held until 1935, and then