In September 1920, Copenhaver became a Field Secretary on the national staff of the
YWCA covering the south and central region. From 1920 to 1923 she was a rural community organizer. In addition to introducing the programs of the YWCA to local communities and churches, which explored the tenets of
internationalism that had sprung up after the first World War. The YWCA believed that if women used their moral and professional authority, they would reshape the world. Copenhaver participated in the "Conference at the Lake" and after their presentation on relationships with Syrian and Japanese women, and the Bible study, she directed a play, which she had written with her mother. The basic theme was modernity and the enlightenment of women who could draw upon the past, their spirituality and their ability to work and use their intelligence. until the Industrial Department was phased out soon after the end of
World War II. When that happened, in 1947, Anderson took a two-year assignment with the international YWCA in Italy to help with relief efforts. At the end of her assignment, she returned from Italy and was terminated by the Y due to their elimination of women's employment programs. ==References==