(7 April 1900 - 18 November 1905) (divorced) (2 children)
London married Elizabeth "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."
During the marriage, London continued his friendship with Anna Strunsky, co-authoring The Kempton-Wace Letters, an epistolary novel contrasting two philosophies of love. Anna, writing "Dane Kempton's" letters, arguing for a romantic view of marriage, while London, writing "Herbert Wace's" letters, argued for a scientific view, based on Darwinism and eugenics. In the novel, his fictional character contrasted two women he had known.
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 (later called Becky), 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.
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."
London reportedly complained to friends Joseph Noel and George Sterling: [Bessie] is devoted to purity. When I tell her morality is only evidence of low blood pressure, she hates me. She'd sell me and the children out for her damned purity. It's terrible. Every time I come back after being away from home for a night she won't let me be in the same room with her if she can help it.
Stasz writes that these were "code words for [Bess's] fear that [Jack] was consorting with prostitutes and might bring home venereal disease."
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 18, 1905.