He was born on July 12, 1920, in Whitehorse, Yukon, where his father had moved for the 1898 Klondike Gold Rush. His family moved to Dawson City, Yukon in 1921. His mother, Laura Beatrice Berton (née Thompson), was a school teacher in Toronto until she was offered a job as a teacher in Dawson City at the age of 29 in 1907. She met Frank Berton in the nearby mining town of Granville shortly after settling in Dawson and teaching kindergarten. Laura Beatrice Berton's autobiography of life in the Yukon entitled "I Married the Klondike" was published in her later years and gave her, what her son Pierre describes as 'a of fame, which she thoroughly enjoyed.'