Please answer the following question: Given the following context:  The rescued party, having had its last contact with civilization in 1914, was unaware of the course of the Great War. News of Shackleton's safe arrival in the Falklands briefly eclipsed war news in the British newspapers on 2 June 1916. The expedition returned home in piecemeal fashion, at a critical stage in the war, without the normal honours and civic receptions. When Shackleton himself finally arrived in England on 29 May 1917, after a short American lecture tour, his return was barely noticed.Despite McNish's efforts in preparing and sailing on the James Caird voyage, his prior insubordination meant that, on Shackleton's recommendation, he was one of four men denied the Polar Medal; the others whose contributions fell short of Shackleton's expected standards were John Vincent, William Stephenson and Ernest Holness. Most of the members of the expedition returned to take up immediate active military or naval service. Before the war ended, two—Tim McCarthy of the open boat journey and the veteran Antarctic sailor Alfred Cheetham—had been killed in action, and Ernest Wild of the Ross Sea party had died of typhoid while serving in the Mediterranean. Several others were severely wounded, and many received decorations for gallantry. Following a propaganda mission in Buenos Aires, Shackleton was employed during the last weeks of the war on special service in Murmansk, with the Army rank of Major. This occupied him until March 1919. He thereafter organised one final Antarctic expedition, the Shackleton–Rowett Expedition on Quest, which left London on 17 September 1921. From the Endurance crew, Wild, Worsley, Macklin, McIlroy, Hussey, Alexander Kerr, Thomas McLeod and cook Charles Green, all sailed with Quest.Shackleton died of a heart attack on 5 January 1922, while Quest was anchored at South Georgia. After his death the original programme, which had included an exploration of Enderby Land, was abandoned. Wild led a brief cruise which brought them into sight of Elephant Island. They anchored off Cape Wild, and...  answer the following question:  What were the names of the four men who were denied the Polar Medal?
Answer:
Ernest Holness