Who was known by the pseudonym "Araucaria"?

The Reverend John Galbraith Graham (16 February 1921 – 26 November 2013) was a British crossword compiler, best known as Araucaria of “The Guardian” newspaper. It is common practice for crossword compilers to publish under a pseudonym. Graham had taken his pseudonym from the "monkey-puzzle tree" (in the picture), for which the official Latin name is “Araucaria araucana”.

Crosswords by Araucaria were a work of art and revealed the compiler’s wide knowledge, his understanding of current affairs and great sense of humour. When the popular UK novelist, and former deputy chairman of the Conservative Party, Lord (Jeffrey) Archer was brought down by a sex scandal, Araucaria published a crossword with the clue “Poetical scene with surprisingly chaste Lord Archer vegetating (3, 3, 8, 12)”. The solution – an anagram of the last four words in the clue – is “The Old Vicarage, Grantchester”, the title of a famous Rupert Brooke poem, and the name of the house, owned by Archer, where he was hiding from the press during the scandal.