John Pratt, 5th Marquess Camden

Commissioned into the Scots Guards, he rose to the rank of major and was later appointed as Honorary Colonel of the 516 Light Anti-Aircraft Regiment, Royal Artillery.^[1][2]

In civilian life, Brecknock was a director of Darracq Motor Engineering Company, Bayard Cars Ltd, and Pobjoy Aircraft & Airmotors.^[1]

On 14 December 1943, Brecknock succeeded as Marquess Camden (1812), Earl of Camden (1786), Earl of Brecknock (1812), Viscount Bayham (1786), and Baron Camden of Camden Place, Chislehurst, Kent (1765).^[1]

In 1945 he became a Justice of the Peace and in 1957 a Deputy Lieutenant.^[1]

On 19 October 1920, at St Margaret's, Westminster, Lord Brecknock married firstly Marjorie Minna Jenkins (1900–1989), a daughter of Col. Atherton Edward Jenkins. Before their divorce in 1941, they were the parents of two children:

• Lady Mary Clementine (1921–2002)
• David George Edward Henry (born 1930)

Marjorie, who retained the title Countess of Brecknock, was a Superintendent of the St John Ambulance Brigade and a lady-in-waiting to Princess Marina, Duchess of Kent. In 1988, with Dame Mary Fagan and Dr Marjorie Williams, she began fundraising for a hospice in Andover. The Countess of Brecknock Hospice opened after Lady Brecknock's death, the Duchess of Kent having laid the foundation stone.^[3]

On 31 January 1942 he married secondly Averil Streatfeild, daughter of Colonel H. S. J. Streatfeild. Together they were the parents of one son:

• Lord Michael John Henry Pratt (1946–2007)

In 1978, as Lord Camden, he married thirdly Cecil Rosemary Pawle, a daughter of Brigadier Hanbury Pawle, former wife of Peter Townsend.^[1]