[1] He achieved a first in Mods (Latin and Greek language and literature) in 1957, and a first in Greats (specialising in philosophy and ancient history) in 1959.

[1] Having achieved such a high class degree, Gregson's college tutor recommended an academic career, but only if he couldn't find an alternative.

[2] His first job was to prepare briefs for negotiations involved in Britain's first attempt to join the European Common Market; it was unsuccessful.

[3] In the 1983 New Year Honours, Gregson was appointed a Companion of the Order of the Bath (CB) in recognition of his service as Deputy Secretary of the Cabinet Office.

[8] In the 1988 Queen's Birthday Honours, he was promoted to Knight Commander of the Order of the Bath (KCB) in recognition of his service as Permanent Under Secretary Of State in the Department of Energy, and therefore granted the title sir.

[9] In the 1996 New Year Honours, he was promoted to a Knight Grand Cross (the highest rank) of the Order of the Bath (GCB) in recognition of his service as Permanent Secretary of the Department of Trade and Industry.