"Mattie and the Machine is a fictionalized yet historically accurate account of Margaret E. Knight's fight to obtain recognition as a 19th century female inventor (she would eventually be inducted into the National Inventors Hall of Fame in 2006). Fifteen-year-old Mattie is a mechanic at Columbia Paper's bag factory. With sales booming after the Civil War, her boss expands the formerly all-female workforce by hiring his old Army comrades, including...