most of the Wrangel Island party and accelerated the deaths of Malloch and Mamen was later diagnosed as a form of nephritis brought about by eating faulty pemmican. Stefansson explained this by saying that "our pemmican makers has failed us through supplying us with a product deficient in fat." Peary had emphasised that a polar explorer should "give his personal, constant and insistent attention" to the making of his pemmican; McKinlay believed that Stefansson had devoted too much time selling the idea of the expedition, and too little ensuring the quality of the food that its members would depend upon. Of the survivors, Hadley continued working for the Canadian Arctic Expedition, becoming second officer and later master of the supply ship Polar Bear. He died of influenza, in San Francisco in 1918. Hadley and McConnell wrote accounts of their experiences for Stefansson, who incorporated them in The Friendly Arctic. Chafe also wrote and published a short account. Most of the others quickly returned to relative obscurity, but in 1922, Fred Maurer was persuaded by Stefansson to join an attempt to colonise Wrangel Island. To the embarrassment of the Canadian government, Stefansson insisted on going ahead, even though Wrangel Island was indisputably part of what had then become the Soviet Union. A party of five, including Maurer, was sent to the island; only one, an Inuit woman Ada Blackjack, survived. Despite their ordeal, many of the Karluk survivors lived long lives; Williamson, who declined to speak or write of his experiences in the Arctic, lived to be 97, dying in Victoria, Canada, in 1975. McKinlay died in 1983, aged 95, having published his account of the expedition in 1976. Kuraluk, Kuruk and their daughters, Helen and Mugpi, returned to their former life at Point Barrow. The two girls, says Pálsson, had provided "important sources of cheer at the darkest moments." Mugpi, who later was known as Ruth Makpii Ipalook, became the very last survivor of the Karluk voyage, dying in 2008 after a full life, aged 97. Published voyage accounts Six first-hand accounts of Karluk's last voyage have been published. These include Stefansson's account which only covers the June to September 1913 period. Expedition secretary Burt McConnell wrote an account of the Wrangel Island rescue which was published in The New York Times, 15 September 1914. A version of McConnell's account appears in Stefansson's book. 1914: Bartlett's story of the Karluk