The Question and Answer section for The Outcasts of Poker Flat is a great resource to ask questions, find answers, and discuss the novel.
Yes, they can. Most of them partake in gambling, drinking, and other "vices". They just use the outcasts as scapegoats for their own guilt.
Tom Simson and his fiancée, Piney Woods actually add some energy and hope to their group. The prostitutes actually take a liking to Piney. There is music and even some merriment.
It is an unnamed narrator. The point of view is Third-person omniscient.