This document provides brief biographies of five American painters: Thomas Cole, Winslow Homer, Jackson Pollock, Georgia O'Keeffe, and Edward Hopper. It describes their backgrounds, artistic styles and contributions. Thomas Cole is identified as the founder of the Hudson River School. Winslow Homer is known for his marine paintings and graphic designs. Jackson Pollock was an influential abstract expressionist. Georgia O'Keeffe painted flowers and landscapes in an abstract style. Edward Hopper created realistic paintings of urban and rural American scenes.