Two years later, on the death of Gordon Ambrose de Lisle Lee, Cochrane was chosen to succeed him as Clarenceux King of Arms on 26 July 1928.
[2] Cochrane was made CVO in 1931, and in 1934, he was appointed Advisor on Naval Badges in succession to Major Foulkes, its originator.
For nearly 30 years, he served on the Court of the New England Company—a charity originally set up by Oliver Cromwell to evangelise the native inhabitants of North America.
He was a tall, distinguished figure, and his leonine head made him easily recognisable on State occasions Cochrane married Margaret Peregrina Ilbert (1882–1952), the fourth daughter of Sir Courtenay Ilbert, clerk to the House of Commons at St Margaret's Westminster on 15 May 1907.
His surviving daughters were married to Sir John Winnifrith (permanent secretary at the Ministry of Agriculture) and Alec Peterson (a pioneer in international education).