As men left CF&I employment to join a branch of the armed services, women were required to fill those positions. Their presence became much more common doing clerical work assisting in the administrative, financial, sales, photography and media departments. Some women even filled physically grueling and dangerous positions in the production areas that had once only employed men. In addition to their new duties, dozens of women joined the Spark Plug Club, a social and philanthropic group for women sponsored by the company. Charities the Spark Plug Club supported varied through the years, but mainly focused on producing children’s parties and activities at CF&I’s YMCA, and assisting needy Pueblo families with bedding, clothing, and food. Members maintained their normal work schedule and participated in club activities during their off hours.