Valiant Is the Word for Carrie (1936)

"You're going to fall in love with Carrie...a woman without money, reputation or friends, who fought for the happiness of two youngsters in as stirring a fight as you will witness on stage or screen or read about."

Carrie Snyder is a prostitute, who is forced out of the fictional southern town of Crebillon, after forming a friendship with a young boy named Paul, whose dying mother is unable to protest against her son visiting such a woman. After Carrie has left town Paul runs away from his abusive father, and meets a girl named Lady who has run away from a burning trainwreck, not wanting to go back to the people she was with. Carrie comes back for Paul and ends up taking Paul and Lady to New York with her.