Jo March is a fictional character and one of the sisters in the classic novel "Little Women" by Louisa May Alcott. The novel has been adapted into several films, including the 1949 version directed by Mervyn LeRoy. In this film, Jo is portrayed by June Allyson.

Jo is the second-oldest of the four March sisters and is depicted as being strong-willed, independent, and creative. She is passionate about writing and aspires to be a successful author, despite the challenges and limitations faced by women in the 19th century. Throughout the story, she grapples with her desire for independence and her love for her family, and ultimately learns important lessons about love, sacrifice, and the meaning of true success.

In the 1949 film, June Allyson's portrayal of Jo is warm, spirited, and determined, capturing the character's wit, humor, and spirit of adventure.