Three ladies snap a picture together. A century later, researchers take a closer look and are totally blown away… . In 1912, three young women—Pearl, Viola, and Penelope—stood briefly outside the noisy, lint-choked Porte Mill in Gastonia, North Carolina, to pose for a photograph. The flash of Thomas Himmel’s camera captured their solemn faces, framed against the grim backdrop of their workplace, where they toiled as child laborers. It was a fleeting moment, one they likely thought little of as t