The principal character, Jo, 15 years old at the beginning of the book, is a strong and willful young woman, struggling to subdue her fiery temper and stubborn personality.
Second oldest of the four sisters, Jo is masculine, the smartest, most creative one in the family; her father has referred to her as his "son Jo,” and her best friend and neighbour, Theodore "Laurie" Laurence, sometimes calls her "my dear fellow,” while she, alone, calls him Teddy. Jo has a "hot" temper that often leads her into trouble. With the help of her own misguided sense of humor, her sister, Beth, and her mother, she works on controlling it. It has been said that much of Louisa May Alcott shows through in these characteristics of Jo. In her essay, "Recollections of My Childhood,” Alcott refers to herself as a tomboy who enjoyed boys' activities, like running foot-races and climbing trees.
Jo loves literature, both reading and writing. She composes plays for her sisters to perform and writes short stories. She initially rejects the idea of marriage and romance, feeling that it would break up her family and separate her from the sisters whom she adores. While pursuing a literary career in New York City, she meets Friedrich Bhaer, a German professor. On her return home, Laurie proposes marriage to Jo, which she rejects, thus confirming her independence. Another reason for the rejection is that the love that Laurie has for Jo is more a brotherly love, rather than romantic love, the difference between which he was unable to understand, because he was "just a boy,” as said by Alcott in the book.
After Beth dies, Professor Bhaer woos Jo at her home, when "they decide to share life's burdens, just as they shared the load of bundles on their shopping expedition." She is 25 years old when she accepts his proposal. The marriage is deferred, until her unexpected inheritance of her Aunt March's home, a year later. According to critic Barbara Sicherman, "The crucial first point is that the choice is hers, its quirkiness another sign of her much-prized individuality." They have two sons, Robert "Rob" Bhaer and Theodore "Ted" Bhaer. Jo also writes the first part of Little Women during the second portion of the novel. According to Elbert, "her narration signals a successfully completed adolescence."
