After serving during the Second World War, he joined the Commonwealth Relations Office where he held several posts in Cambodia, Brunei, Bangladesh and the British Virgin Islands.

[3] Davidson joined HMS Rocket (H92) a few months later, an Eastern Fleet destroyer which took part in the Battle of Penang.

[3] Davidson participated in discussions for a new Brunei-UK Treaty, which was eventually signed on 7 January 1979, after he had departed Bandar Seri Begawan.

[5] He continued to take up several other positions including as a visiting fellow at the London School of Economics he decided to do a pupillage at the Admiralty Bar.

He worked as a Visiting Fellow at the London School of Economics' Centre for International Studies (1982-1984) and as Chairman of the Pensions Appeals Tribunals (1984-1995).

His widow (Daphne), four children (Duncan, Gavin, Caroline, and Emma), and a slew of grandkids survive him.