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Shackleton's Carpenter, Harry McNish, was the only man who challenged The Boss on the ice floes of Antarctica.
Shackleton's Endurance sank in Antarctica, leaving him and his crew of 27 stranded. McNish, brilliant carpenter and shipwright, defied Shackleton, but went all the way with him and played an absolutely vital role in ensuring all 28 were saved. For all his bravery and ingenuity, McNish was one of the very few who were never awarded the Polar Medal.