"Ms. Klaben and Mr. Flores crashed in terrain that was waist-deep in snow, with temperatures as numbing as 48 degrees below zero."

"Without wilderness survival training, Mr. Flores adapted nonetheless. He wrapped Ms. Klaben’s injured foot in her sweaters, covered the openings of the cabin with tarpaulins and tried, without success, to fix their radio to send out a distress signal and build rabbit traps. What little food Ms. Klaben and Mr. Flores had brought on board — a few cans of sardines, tuna fish, fruit salad and a box of Saltine crackers — was rationed and gone within 10 days. They drank water, some of it filtered through shreds of one of her dresses and boiled in an empty oil can. They ate bits of toothpaste that they squeezed from a half-filled tube — and virtually nothing else, they said.... To pass the time, they read books, including a book of poems by Robert Service and a Bible. At times, Mr. Flores tried to convert Ms. Klaben from Judaism to his Mormon faith. In early March, Mr. Flores left her for eight days — walking the treacherous ridge in snowshoes he had made of tree branches and wire — to find a clearing in the dense woods where they might be better seen from the air by bush pilots. He returned after finding a knoll about three-quarters of a mile away, and on Day 42 they set off for the spot, dragging a makeshift sled with their belongings. A few days later, he left her again and found a frozen pond on which he etched an enormous SOS sign, with an arrow that pointed to their campsite, hoping it would be seen from the air."

From the NYT obituary, "Helen Klaben Kahn, Survivor of a 49-Day Yukon Ordeal, Dies at 76."

This happened in 1962. In 1975, they made a TV movie about it — with Sally Struthers as Klaben and Ed Asner as the pilot Flores.