The United States Radium Corporation
In 1917, Dr. Sabin Arnold von Sockocky and Dr. George S. Willis founded the United States Radium Corporation. There were more than one hundred workers in the plant, most of whom were women. And these unwitting female workers became famous in the press due to the terrible ways the company led them to their eventual deaths.
Source: Imgur
During World War I, the corporation became the leading supplier of luminous watches to the military. The workers who were handling the radium spent a lot of their time concentrating on the extraction and purification of radium from carnotite (an ore of uranium). With it, they were making the luminous paints. These women had to paint the watches and other items using the radium paint.