In 1944, he retired and the following year changed his name to Tremayne, his mother's maiden name, to avoid confusion with his younger brother, Philip Babington.

[3] During the First World War, Babington was a member of the Royal Naval Air Service.

He participated in the air raid on the Friedrichshaven Airship Factory, Germany on 21 November 1914.

[3] On 2 January 1920, Babington was removed from the Navy List and awarded a permanent commission in the Royal Air Force.

[3] He served in the Second World War as Air Officer Commanding-in-Chief Technical Training Command and then Head of RAF Mission in Moscow[4] before retiring in 1944.