In 1922, Lucille Atcherson became the first woman permitted to join the United States diplomatic corps. Eleven years later, Ruth Bryan Owen was appointed the first female chief of mission, minister rank, of the U.S. embassy for Denmark and Iceland. Helen Eugenie Anderson, appointed as the first female chief of mission, ambassador rank, to Denmark in 1949, was the first woman to sign a treaty on behalf of the United States. These women were the female forebears of what had typically been a male-dominated field.