(22 April 1880 - 14 April 1914) (his death) 5 children
At eighteen, Nesbit met the bank clerk Hubert Bland in 1877. Seven months pregnant, she married Bland on 22 April 1880, though she did not immediately live with him, as Bland initially continued to live with his mother. Their marriage was a stormy one. Early on Nesbit discovered another woman believed she was Hubert's fiancee and had also borne him a child. A more serious blow came later when she discovered that her good friend, Alice Hoatson, was pregnant with Hubert's child. She had previously agreed to adopt Hoatson's child and allow Hoatson to live with her as their housekeeper. After she discovered the truth, they quarrelled violently and suggested that Hoatson and the baby should leave; her husband threatened to leave Edith if she disowned the baby and its mother. Hoatson remained with them as a housekeeper and secretary and became pregnant by Bland again 13 years later. Edith again adopted Hoatson's child.
Nesbit's children were Paul Bland (1880–1940), to whom The Railway Children was dedicated; Iris Bland (1881-1950s); Fabian Bland (1885–1900); Rosamund Bland (1886–1950), to whom The Book of Dragons was dedicated; and John Bland (1898–1971) to whom The House of Arden was dedicated. Her son Fabian died aged 15 after a tonsil operation; Nesbit dedicated a number of books to him: Five Children and It and its sequels, as well as The Story of the Treasure Seekers and its sequels. Nesbit's adopted daughter Rosamund collaborated with her on the book Cat Tales.
Nesbit was a follower of the Marxist socialist William Morris and she and her husband Hubert Bland were among the founders of the Fabian Society in 1884. Their son Fabian was named after the society. They also jointly edited the Society's journal Today; Hoatson was the Society's assistant secretary. Nesbit and Bland also dallied briefly with the Social Democratic Federation, but rejected it as too radical. Nesbit was an active lecturer and prolific writer on socialism during the 1880s. Nesbit also wrote with her husband under the name "Fabian Bland", though this activity dwindled as her success as a children's author grew.
Nesbit lived from 1899 to 1920 in Well Hall, Eltham, Kent (now in south-east Greater London), which appears in fictional guise in several of her books, especially The Red House. She and her husband entertained a large circle of friends, colleagues and admirers at their grand Well Hall. On 20 February 1917, some three years after Bland died, Nesbit married Thomas "the Skipper" Tucker. They were married in Woolwich, where he was a ship's engineer on the Woolwich Ferry.