Late in 1876, Flora Wellman married John London, a partially disabled Civil War veteran, and brought her baby John, later known as Jack, to live with the newly married couple. The family moved around the San Francisco Bay Area before settling in Oakland, where London completed public grade school. The Prentiss family moved with the Londons, and remained a stable source of care for the young Jack.

In 1889, London began working 12 to 18 hours a day at Hickmott’s Cannery. Seeking a way out, he borrowed money from his foster mother Virginia Prentiss, bought the sloop Razzle-Dazzle from an oyster pirate named French Frank, and became an oyster pirate himself. In his memoir, John Barleycorn, he claims also to have stolen French Frank’s mistress Mamie. After a few months, his sloop became damaged beyond repair. London hired on as a member of the California Fish Patrol.

In 1893, he signed on to the sealing schooner Sophie Sutherland, bound for the coast of Japan. When he returned, the country was in the grip of the panic of ’93 and Oakland was swept by labor unrest. After grueling jobs in a jute mill and a street-railway power plant, London joined Coxey’s Army and began his career as a tramp. In 1894, he spent 30 days for vagrancy in the Erie County Penitentiary at Buffalo, New York. In The Road, he wrote:

In “Koolau the Leper”, London describes Koolau, who is a Hawaiian leper—and thus a very different sort of “superman” than Martin Eden—and who fights off an entire cavalry troop to elude capture, as “indomitable spiritually—a … magnificent rebel”. This character is based on Hawaiian leper Kaluaikoolau, who in 1893 revolted and resisted capture from forces of the Provisional Government of Hawaii in the Kalalau Valley.

London desperately wanted to attend the University of California, located in Berkeley. In 1896, after a summer of intense studying to pass certification exams, he was admitted. Financial circumstances forced him to leave in 1897, and he never graduated. No evidence has surfaced that he ever wrote for student publications while studying at Berkeley.

London met Bessie through his friend at Oakland High School, Fred Jacobs; she was Fred’s fiancée. Bessie, who tutored at Anderson’s University Academy in Alameda California, tutored Jack in preparation for his entrance exams for the University of California at Berkeley in 1896. Jacobs was killed aboard the USAT Scandia in 1897, but Jack and Bessie continued their friendship, which included taking photos and developing the film together. This was the beginning of Jack’s passion for photography.

London joined the Socialist Labor Party in April 1896. In the same year, the San Francisco Chronicle published a story about the twenty-year-old London’s giving nightly speeches in Oakland’s City Hall Park, an activity he was arrested for a year later. In 1901, he left the Socialist Labor Party and joined the new Socialist Party of America. He ran unsuccessfully as the high-profile Socialist candidate for mayor of Oakland in 1901 (receiving 245 votes) and 1905 (improving to 981 votes), toured the country lecturing on socialism in 1906, and published two collections of essays about socialism: War of the Classes (1905) and Revolution, and other Essays (1906).

In 1897, when he was 21 and a student at the University of California, Berkeley, London searched for and read the newspaper accounts of his mother’s suicide attempt and the name of his biological father. He wrote to William Chaney, then living in Chicago. Chaney responded that he could not be London’s father because he was impotent; he casually asserted that London’s mother had relations with other men and averred that she had slandered him when she said he insisted on an abortion. Chaney concluded by saying that he was more to be pitied than London. London was devastated by his father’s letter; in the months following, he quit school at Berkeley and went to the Klondike during the gold rush boom.

On July 12, 1897, London (age 21) and his sister’s husband Captain Shepard sailed to join the Klondike Gold Rush. This was the setting for some of his first successful stories. London’s time in the harsh Klondike, however, was detrimental to his health. Like so many other men who were malnourished in the goldfields, London developed scurvy. His gums became swollen, leading to the loss of his four front teeth. A constant gnawing pain affected his hip and leg muscles, and his face was stricken with marks that always reminded him of the struggles he faced in the Klondike. Father William Judge, “The Saint of Dawson”, had a facility in Dawson that provided shelter, food and any available medicine to London and others. His struggles there inspired London’s short story, “To Build a Fire” (1902, revised in 1908), which many critics assess as his best.

London left Oakland with a social conscience and socialist leanings; he returned to become an activist for socialism. He concluded that his only hope of escaping the work “trap” was to get an education and “sell his brains”. He saw his writing as a business, his ticket out of poverty, and, he hoped, a means of beating the wealthy at their own game. On returning to California in 1898, London began working to get published, a struggle described in his novel, Martin Eden (serialized in 1908, published in 1909). His first published story since high school was “To the Man On Trail”, which has frequently been collected in anthologies. When The Overland Monthly offered him only five dollars for it—and was slow paying—London came close to abandoning his writing career. In his words, “literally and literarily I was saved” when The Black Cat accepted his story “A Thousand Deaths”, and paid him $40—the “first money I ever received for a story”.

London began his writing career just as new printing technologies enabled lower-cost production of magazines. This resulted in a boom in popular magazines aimed at a wide public audience and a strong market for short fiction. In 1900, he made $2,500 in writing, about $77,000 in today’s currency. Among the works he sold to magazines was a short story known as either “Diable” (1902) or “Bâtard” (1904), two editions of the same basic story; London received $141.25 for this story on May 27, 1902. In the text, a cruel French Canadian brutalizes his dog, and the dog retaliates and kills the man. London told some of his critics that man’s actions are the main cause of the behavior of their animals, and he would show this in another story, The Call of the Wild.

London married Elizabeth Mae (or May) “Bessie” Maddern on April 7, 1900, the same day The Son of the Wolf was published. Bess had been part of his circle of friends for a number of years. She was related to stage actresses Minnie Maddern Fiske and Emily Stevens. Stasz says, “Both acknowledged publicly that they were not marrying out of love, but from friendship and a belief that they would produce sturdy children.” Kingman says, “they were comfortable together… Jack had made it clear to Bessie that he did not love her, but that he liked her enough to make a successful marriage.”

London’s pet name for Bess was “Mother-Girl” and Bess’s for London was “Daddy-Boy”. Their first child, Joan, was born on January 15, 1901, and their second, Bessie “Becky” (also reported as Bess), on October 20, 1902. Both children were born in Piedmont, California. Here London wrote one of his most celebrated works, The Call of the Wild.

In July 1901, two pieces of fiction appeared within the same month: London’s “Moon-Face”, in the San Francisco Argonaut, and Frank Norris’ “The Passing of Cock-eye Blacklock”, in Century Magazine. Newspapers showed the similarities between the stories, which London said were “quite different in manner of treatment, [but] patently the same in foundation and motive.” London explained both writers based their stories on the same newspaper account. A year later, it was discovered that Charles Forrest McLean had published a fictional story also based on the same incident.

The most serious charge of plagiarism was based on London’s “The Bishop’s Vision”, Chapter 7 of his novel The Iron Heel (1908). The chapter is nearly identical to an ironic essay that Frank Harris published in 1901, titled “The Bishop of London and Public Morality”. Harris was incensed and suggested he should receive 1/60th of the royalties from The Iron Heel, the disputed material constituting about that fraction of the whole novel. London insisted he had clipped a reprint of the article, which had appeared in an American newspaper, and believed it to be a genuine speech delivered by the Bishop of London.

While living at his rented villa on Lake Merritt in Oakland, California, London met poet George Sterling; in time they became best friends. In 1902, Sterling helped London find a home closer to his own in nearby Piedmont. In his letters London addressed Sterling as “Greek”, owing to Sterling’s aquiline nose and classical profile, and he signed them as “Wolf”. London was later to depict Sterling as Russ Brissenden in his autobiographical novel Martin Eden (1910) and as Mark Hall in The Valley of the Moon (1913).

London’s “strength of utterance” is at its height in his stories, and they are painstakingly well-constructed. “To Build a Fire” is the best known of all his stories. Set in the harsh Klondike, it recounts the haphazard trek of a new arrival who has ignored an old-timer’s warning about the risks of traveling alone. Falling through the ice into a creek in seventy-five-below weather, the unnamed man is keenly aware that survival depends on his untested skills at quickly building a fire to dry his clothes and warm his extremities. After publishing a tame version of this story—with a sunny outcome—in The Youth’s Companion in 1902, London offered a second, more severe take on the man’s predicament in The Century Magazine in 1908. Reading both provides an illustration of London’s growth and maturation as a writer. As Labor (1994) observes: “To compare the two versions is itself an instructive lesson in what distinguished a great work of literary art from a good children’s story.”

In early 1903, London sold The Call of the Wild to The Saturday Evening Post for $750, and the book rights to Macmillan for $2,000. Macmillan’s promotional campaign propelled it to swift success.

While London had pride in his children, the marriage was strained. Kingman says that by 1903 the couple were close to separation as they were “extremely incompatible”. “Jack was still so kind and gentle with Bessie that when Cloudsley Johns was a house guest in February 1903 he didn’t suspect a breakup of their marriage.”

On July 24, 1903, London told Bessie he was leaving and moved out. During 1904, London and Bess negotiated the terms of a divorce, and the decree was granted on November 11, 1904.

London accepted an assignment of the San Francisco Examiner to cover the Russo-Japanese War in early 1904, arriving in Yokohama on January 25, 1904. He was arrested by Japanese authorities in Shimonoseki, but released through the intervention of American ambassador Lloyd Griscom. After travelling to Korea, he was again arrested by Japanese authorities for straying too close to the border with Manchuria without official permission, and was sent back to Seoul. Released again, London was permitted to travel with the Imperial Japanese Army to the border, and to observe the Battle of the Yalu.

London asked William Randolph Hearst, the owner of the San Francisco Examiner, to be allowed to transfer to the Imperial Russian Army, where he felt that restrictions on his reporting and his movements would be less severe. However, before this could be arranged, he was arrested for a third time in four months, this time for assaulting his Japanese assistants, whom he accused of stealing the fodder for his horse. Released through the personal intervention of President Theodore Roosevelt, London departed the front in June 1904.

On August 18, 1904, London went with his close friend, the poet George Sterling, to “Summer High Jinks” at the Bohemian Grove. London was elected to honorary membership in the Bohemian Club and took part in many activities. Other noted members of the Bohemian Club during this time included Ambrose Bierce, Gelett Burgess, Allan Dunn, John Muir, Frank Norris, and Herman George Scheffauer.

After divorcing Maddern, London married Charmian Kittredge in 1905. London had been introduced to Kittredge in 1900 by her aunt Netta Eames, who was an editor at Overland Monthly magazine in San Francisco. The two met prior to his first marriage but became lovers years later after Jack and Bessie London visited Wake Robin, Netta Eames’ Sonoma County resort, in 1903. London was injured when he fell from a buggy, and Netta arranged for Charmian to care for him. The two developed a friendship, as Charmian, Netta, her husband Roscoe, and London were politically aligned with socialist causes. At some point the relationship became romantic, and Jack divorced his wife to marry Charmian, who was five years his senior.

In 1905, London purchased a 1,000 acres (4.0 km) ranch in Glen Ellen, Sonoma County, California, on the eastern slope of Sonoma Mountain. He wrote: “Next to my wife, the ranch is the dearest thing in the world to me.” He desperately wanted the ranch to become a successful business enterprise. Writing, always a commercial enterprise with London, now became even more a means to an end: “I write for no other purpose than to add to the beauty that now belongs to me. I write a book for no other reason than to add three or four hundred acres to my magnificent estate.”

In 1906, London published in Collier’s magazine his eye-witness report of the San Francisco earthquake.

In 1906, the New York World published “deadly parallel” columns showing eighteen passages from London’s short story “Love of Life” side by side with similar passages from a nonfiction article by Augustus Biddle and J. K. Macdonald, titled “Lost in the Land of the Midnight Sun”. London noted the World did not accuse him of “plagiarism”, but only of “identity of time and situation”, to which he defiantly “pled guilty”.

The couple also visited Goldfield, Nevada, in 1907, where they were guests of the Bond brothers, London’s Dawson City landlords. The Bond brothers were working in Nevada as mining engineers.

London shared common concerns among many European Americans in California about Asian immigration, described as “the yellow peril”; he used the latter term as the title of a 1904 essay. This theme was also the subject of a story he wrote in 1910 called “The Unparalleled Invasion”. Presented as an historical essay set in the future, the story narrates events between 1976 and 1987, in which China, with an ever-increasing population, is taking over and colonizing its neighbors with the intention of taking over the entire Earth. The western nations respond with biological warfare and bombard China with dozens of the most infectious diseases. On his fears about China, he admits, “it must be taken into consideration that the above postulate is itself a product of Western race-egotism, urged by our belief in our own righteousness and fostered by a faith in ourselves which may be as erroneous as are most fond race fancies.”

An amateur boxer and avid boxing fan, London reported on the 1910 Johnson–Jeffries fight, in which the black boxer Jack Johnson vanquished Jim Jeffries, known as the “Great White Hope”. In 1908, London had reported on an earlier fight of Johnson’s, contrasting the black boxer’s coolness and intellectual style, with the apelike appearance and fighting style of his Canadian opponent, Tommy Burns:

Stasz notes that “London regarded the Wobblies as a welcome addition to the Socialist cause, although he never joined them in going so far as to recommend sabotage.” Stasz mentions a personal meeting between London and Big Bill Haywood in 1912.

In 1913 and 1914, a number of newspapers printed the first three sentences with varying terms used instead of “scab”, such as “knocker”, “stool pigeon” or “scandal monger”.

Beginning in December 1914, London worked on The Acorn Planter, A California Forest Play, to be performed as one of the annual Grove Plays, but it was never selected. It was described as too difficult to set to music. London published The Acorn Planter in 1916.

Biographer Russ Kingman called Charmian “Jack’s soul-mate, always at his side, and a perfect match.” Their time together included numerous trips, including a 1907 cruise on the yacht Snark to Hawaii and Australia. Many of London’s stories are based on his visits to Hawaii, the last one for 10 months beginning in December 1915.

London’s last visit to Hawaii, beginning in December 1915, lasted eight months. He met with Duke Kahanamoku, Prince Jonah Kūhiō Kalaniana’ole, Queen Lili’uokalani and many others, before returning to his ranch in July 1916. He was suffering from kidney failure, but he continued to work.

London’s ashes were buried on his property not far from the Wolf House. London’s funeral took place on November 26, 1916, attended only by close friends, relatives, and workers of the property. In accordance with his wishes, he was cremated and buried next to some pioneer children, under a rock that belonged to the Wolf House. After Charmian’s death in 1955, she was also cremated and then buried with her husband in the same spot that her husband chose. The grave is marked by a mossy boulder. The buildings and property were later preserved as Jack London State Historic Park, in Glen Ellen, California.

In his Glen Ellen ranch years, London felt some ambivalence toward socialism and complained about the “inefficient Italian labourers” in his employ. In 1916, he resigned from the Glen Ellen chapter of the Socialist Party, but stated emphatically he did so “because of its lack of fire and fight, and its loss of emphasis on the class struggle.” In an unflattering portrait of London’s ranch days, California cultural historian Kevin Starr refers to this period as “post-socialist” and says “… by 1911 … London was more bored by the class struggle than he cared to admit.”

London witnessed animal cruelty in the training of circus animals, and his subsequent novels Jerry of the Islands and Michael, Brother of Jerry included a foreword entreating the public to become more informed about this practice. In 1918, the Massachusetts Society for the Prevention of Cruelty to Animals and the American Humane Education Society teamed up to create the Jack London Club, which sought to inform the public about cruelty to circus animals and encourage them to protest this establishment. Support from Club members led to a temporary cessation of trained animal acts at Ringling-Barnum and Bailey in 1925.

London was born near Third and Brannan Streets in San Francisco. The house burned down in the fire after the 1906 San Francisco earthquake; the California Historical Society placed a plaque at the site in 1953. Although the family was working class, it was not as impoverished as London’s later accounts claimed. London was largely self-educated. In 1885, London found and read Ouida’s long Victorian novel Signa. He credited this as the seed of his literary success. In 1886, he went to the Oakland Public Library and found a sympathetic librarian, Ina Coolbrith, who encouraged his learning. (She later became California’s first poet laureate and an important figure in the San Francisco literary community).

In 1996, after the City of Whitehorse, Yukon, renamed a street in honor of London, protests over London’s alleged racism forced the city to change the name of “Jack London Boulevard” back to “Two-mile Hill”.

Some nineteen original collections of short stories were published during London’s brief life or shortly after his death. There have been several posthumous anthologies drawn from this pool of stories. Many of these stories were located in the Klondike and the Pacific. A collection of Jack London’s San Francisco Stories was published in October 2010 by Sydney Samizdat Press.