Six days a week Minnie and Tessa sit, shoulder to shoulder, bent over sewing machines in a big room overflowing with piles of fabric, patterns, and lace. There is no fresh air, the light is dim, and there are too many people in the room. The work is hard and the days are long. Minnie and Tessa work at the Triangle Shirtwaist Company in New York City. The two fourteen-year-olds are best friends. It isn't easy for a Jewish girl and a Catholic girl to...