Thats the guy!
The photographer on that trip was a raging alcoholic, they probably buried the stuff to keep him out. Shackleton was an *** and a complete horndog in real life, but emerged from history as a genious leader. He lost nobody on that expedition, but should have lost everybody. Navigating the southern ocean and finding a remote whaling station and bringing back help after 600 miles in an open boat (think needle in haystack), he should have been shot for the mismanagemnet of the expedition but turning disaster into a hero story made him a legend.
I'm too lazy to google, so I'll just go according to my hazy memory.
From what I recall, it was a race to the south pole. I assume Shackleton might be British, but there was another nation who was competing in that race. I guess the British tried to hide his little secret and glorified his accomplishment. If I recall, he or his crew has military background, so it wasn't just some nobody who was competing in that race. It was certainly a good piece of history for sure.