I did meet Clinton Keeling, a couple of times as a schoolboy, and later in adulthood (as above) at 'Zoologica' and at a meeting at ZSL called to discuss the founding of something called NAPAK (National Assn. of Private Animal Keepers).
His efforts with the 'Where the..' books were both major and important), and it is unfortunate but hardly surprising that so few (including all mine) never physically stood the test of time - but my opinion does vary from some of those voiced here. In life you were far more likely to be talked 'at' rather than talked 'to'..
It is worth digging out a copy of 'Ask of the Beasts' by his then wife Jill Keeling which details the building and running of Pan's Garden, and has some pictures of same. 'Air-brushing' is an oft-used term here, but from the description in her book, it is easy to see why Ashover would perhaps prefer the place to be forgotten.