I said "more or less" just in case any further material (not necessarily Yeti-related) becomes available. And it certainly has, with the recent death of medical missionary Gordon Neilson Patterson.

See also the obituary of Riki Hyde-Chambers, a long-standing friend and supporter of the Dalai Lama - please click here for pdf copy.

And I recently noticed a useful set of notes regarding a number of explorers, whether simply adventurous or perhaps religiously-inspired, who visited Tibet during the 19th century onwards (not including Tintin and Snowy, of course). See also the profile of Laurence Austine Waddell for much more extensive material on this fascinating topic.