He was noticeable in several Annual reports following his appointment, retiring in 1977.
He was also an author, writing several books and scientific papers on topics ranging from agricultural systems to Ravenstein's Law of migration.
One of so many people who gave years of service to the GA, but who few people today remember, and which this blog hopefully will counteract in some small way.
If anyone knows more about David's time at the GA, please get in touch.
References
https://www.amazon.com/Agricultural-Systems-World-Evolutionary-Geographical/dp/0521202698
https://www.sciencedirect.com/science/article/abs/pii/0305748877901438
Update
Grigg also wrote a few pieces that were published in 'Geography'.
