Jack London in relationships and his two types of women

Jack and Charmian London,ca. 1911, possibly at Beauty Ranch.

London married 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. 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 contrasts two women he has known:
[The first was] a mad, wanton creature, wonderful and unmoral and filled with life to the brim. My blood pounds hot even now as I conjure her up … [The second was] a proud-breasted woman, the perfect mother, made preeminently to know the lip clasp of a child. You know the kind, the type. "The mothers of men," I call them. And so long as there are such women on this earth, that long may we keep faith in the breed of men. The wanton was the Mate Woman, but this was the Mother Woman, the last and highest and holiest in the hierarchy of life.
Wace declares:
I propose to order my affairs in a rational manner …. Wherefore I marry Hester Stebbins. I am not impelled by the archaic sex madness of the beast, nor by the obsolescent romance madness of later-day man. I contract a tie which reason tells me is based upon health and sanity and compatibility. My intellect shall delight in that tie.
Analyzing why he "was impelled toward the woman" he intends to marry, Wace says:
it was old Mother Nature crying through us, every man and woman of us, for progeny. Her one unceasing and eternal cry: PROGENY! PROGENY! PROGENY!
In real life, 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, where London also wrote one of his most celebrated works, The Call of the Wild.
Captions to pictures in a photo album, reproduced in part in Joan London's memoir, Jack London and His Daughters, published posthumously, show London's unmistakable happiness and pride in his children. But the marriage itself was under continuous strain. Kingman (1979) says that by 1903 "the breakup … was imminent …. Bessie was a fine woman, but they were extremely incompatible. There was no love left. Even companionship and respect had gone out of the marriage." Nevertheless, "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."[
According to Joseph Noel (1940), "Bessie was the eternal mother. She lived at first for Jack, corrected his manuscripts, drilled him in grammar, but when the children came she lived for them. Herein was her greatest honor and her first blunder." London complained to Noel and George Sterling that, "she's 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 11, 1904.

Second marriage
After divorcing Maddern, London married Charmian Kitteredge, in 1905. London was introduced to Kittredge by his MacMillan Publisher, George Platt Brett, Sr., while Kittredge served as Brett's secretary. 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 on to Australia. Many of London's stories are based on his visits to Hawaii, the last one for 10 months beginning in December 1915.
The couple also visited Goldfield, Nevada, in 1907 where they were guests of the Bond brothers London's Klondike Dawson City landlords Marshall Latham Bond and Louis Whitford Bond who were working there as mining engineers. They toured the mines and participated in a parade.
London had contrasted the concepts of the "Mother Woman" and the "Mate Woman" in The Kempton-Wace letters. His pet name for Bess had been "mother-girl;" his pet name for Charmian was "mate-woman."Charmian's aunt and foster mother, a disciple of Victoria Woodhull, had raised her without prudishness. Every biographer alludes to Charmian's uninhibited sexuality; Noel slyly—"a young woman named Charmian Kittredge began running out to Piedmont with foils, still masks, padded breast plates, and short tailored skirts that fitted tightly over as nice a pair of hips as one might find anywhere;" Stasz directly—"Finding that the prim and genteel lady was lustful and sexually vigorous in private was like discovering a secret treasure;" and Kershaw coarsely—"At last, here was a woman who adored fornication, expected Jack to make her climax, and to do so frequently, and who didn't burst into tears when the sadist in him punched her in the mouth."
Noel (1940) calls the events from 1903 to 1905 "a domestic drama that would have intrigued the pen of an Ibsen.... London's had comedy relief in it and a sort of easy-going romance." In broad outline, London was restless in his marriage; sought extramarital sexual affairs; and found, in Charmian London, not only a sexually active and adventurous partner, but his future life-companion. During this time Bessie and others mistakenly perceived Anna Strunsky as her rival, while Charmian mendaciously gave Bessie the impression of being sympathetic.
They attempted to have children. However, one child died at birth, and another pregnancy ended in a miscarriage.