Who married Peter Baden-Powell, 2nd Baron Baden-Powell?

Arthur Robert Peter Baden-Powell, 2nd Baron Baden-Powell, (known as Peter; 30 October 1913 – 9 December 1962) was the son of Lieutenant-General Robert Baden-Powell, 1st Baron Baden-Powell, the founder of Scouting, and Olave St. Clair Soames. He served for two years in the British South Africa Police in Southern Rhodesia and then in the Southern Rhodesian Civil Service until the end of the Second World War, when he returned to Britain to assume his title and became a director of companies, and a Special Constable with the City of London Police.