Just as they did famously during World War Two, American women took on more types of work during the Great War than most of them could find during times of peace. The country organized for the production of huge amounts of weapons and supplies, using as much labor as possible, while the conscription of men left many of their regular jobs short of workers. So, women had chances at new opportunities in the labor market. Many of these wartime jobs were not well-paid or particularly easy. They did, however, provide the opportunity for new experiences and better incomes.
We have several intriguing pictures of women at work during World War One available in the archives. Such as this one: