Anyway I searched the author and Harold John Blackham is still alive:
H. J. Blackham, born on 31 March 1903, has been a leading and widely respected British humanist for most of his life.
H. J. Blackham was a key organiser of the World Union of Freethinker's conference in London in 1938. When he tried to refound it after the war he decided a new organisation was needed and together with the Dutch philosopher Jaap van Prag started the International Humanist and Ethical Union, of which Julian Huxley was the first President. Blackham worked closely with Julian Huxley in many ways including helping him to revise Religion without Revelation....
He has enjoyed many years retirement in the Wye valley, reading, writing and growing vegetables. He lives the exemplary humanist life that of thought and action welded together.
105 years old!
It makes sense, after all. If you genuinely believe this life is everything that ever will be then you damn well make sure you get your fair share.
Bertrand Russell got a good innings as well [imagine being an adult in the Victorian era and living to see Nixon in the Whitehouse - what an epic journey!] at 97.
Anyway kudos to Blackham.