And no, he didn’t take time to recover from the journey to South Georgia before doing that. https://en.wikipedia.org/wiki/Imperial_Trans-Antarctic_Exped...: “He first left South Georgia a mere three days after he had arrived in Stromness”
3 days to organize a ship, a crew and supplies.
And of course, once back in England, he and most of his crew volunteered to serve in World War One. He was denied that, but several of his crew died in that war. They already had offered to do that when, IIRC in Buenos Aires they heard war had broken out, but had been told by the king to continue the expedition.
A very sobering account is, after being cut off from the rest of the world, arriving at the South Georgia whaling station he asked "Tell me, when was the war over".
The date was May 1916.
"The war is not over" he answered "Millions are being killed. Europe is mad. The World is mad".....The reader may not realise quite how difficult it was for us to envisage nearly two years of the most stupendous war of history.... poison gas and liquid fire, the submarine warfare, the Gallipoli campaign.
Above text is from Shackleton's 'South', his own account of the journey.
That was many moons ago.
Shackleton died some 7 years later in a subsequent expedition.
Yup.
And is buried on South Georgia, in a grave facing south, rather than the traditional christian east.