Tom Crean gives a fascinating alternate view as he was with Shackleton and Scott. He was lost to history in many ways as he was Irish and Ireland became indepedant. His diary corroborates a huge amount if what Shackleton did as he was with him. https://www.collinspress.ie/tom-crean-an-illustrated-life.html#/product/41

Cannot find an original but Shackleton/Crean were the subjects of a 3 day debate on defining success in college this year.