Agnes Grey by Anne Bronte

Agnes Grey is the daughter of a minister, whose family comes to financial ruin. Desperate to earn money to care for herself, she takes one of the few jobs allowed to respectable women in the early Victorian era, as a governess to the children of the wealthy. In working with two different families, the Bloomfields and the Murrays, she comes to learn about the troubles that face a young woman who must try to rein in unruly, spoiled children for a living, and about the ability of wealth and status to destroy social values. After her father's death Agnes opens a small school with her mother and finds happiness with a man who loves her for herself. By the end of the novel they have three children, Edward, Agnes and Mary.