[1] No details are known of how the change in her life occurred when, in the 1910s, she met her companion José Alarcón Herrero,[2] a former anarchist leader born in Jumilla and, like her, a member of the Spanish Socialist Workers' Party (PSOE).

[3] In her writings, Cambrils explains that it was readings and talks with a neighbor in Valencia that opened her eyes to the doctrine of "proletarian redemption" and the role women should play in it.

[4] In 1933, for reasons of health, she moved with José Alarcón to Pego, where she was councilor and general secretary of the Socialist Association, director of the UGT, and member of the casa del pueblo administration board from 1933 to 1939.

[5] At the end of the Civil War, and despite the fact that it was recognized that no crimes of blood had been attributed to him, Alarcón was shot in Alicante along with Aquilino Barrachina [es] and other socialists of Pego on 11 April 1940.

The work was carried out by journalist Rosa Solbes, historian Ana Aguado, and archivist Joan Manuel Almela, with a prologue by Carmen Alborch.

Inspired by August Bebel, Cambrils wrote: "Women workers cannot forget that the only political force of moral solvency frankly defending feminism is socialism," and defined her work as "a plea against injustice, oppression, indissoluble marriage, and violence with the affections of the heart.

"[1][8] At the beginning of the Spanish transition in 1976, a group of socialist economists in Valencia, which included Ernest Lluch and Dolors Bramon, adopted the name María Cambrils.