The correct answer to this open question is the following.
Ada Blackjack was a woman from Alaska, who was part of the 1921 expedition in Wrangel Island. The expedition went out smoothly until the beginning of 1923 when the crew ran out of supplies and food. As other crew members left the ship to find help, she stayed with another crew member, Knight. He became very ill from scurvy and Blackjack took care of him.
After six months of severe illness, Knight died. Ada had to survive on her own. She had to endure many difficult circumstances. His only motivation to keep on was the image of her son and her determination to see him again. That is what made her survive the difficulties.
Ada was finally rescued in August 1923. For her character, instincts, and determination, some historians called her the female Robinson Crusoe.
