The term 'Call of the Wild Author' refers to Jack London, an American author who wrote the novel 'Call of the Wild' in 1903. London was born in San Francisco in 1876 and is best known for his works of adventure fiction, such as 'White Fang' and 'The Sea-Wolf'. He was also a journalist, social activist, and a pioneer in the then-burgeoning world of commercial magazine fiction. London died in 1916 at the age of 40.