Introduction: White trash as social difference : groups, boundaries, and inequalities -- Lubbers, crackers, and poor white trash : borders and boundaries in the colonies and the early republic -- Imagining poor whites in the antebellum South : abolitionist and pro-slavery fictions -- "Three generations of imbeciles are enough" : American eugenics and poor white trash -- "The disease of laziness" : crackers, poor whites, and hookworm crusaders in the new South -- Limning the boundaries of whiteness