The purpose of this paper is to describe and analyze women's contributions to the history and development of management concepts. The paper discusses the needs and reasons for this type of exploration and compares differences between men and women in relation to the development of management thought. A historical profile from the early 1800s which features specific women, events, and women's entries into selected professions, is presented. A research project is described in which writings by and about Jane Addams, Charlotte Perkins Gilman, Mary Parker Follett, Margaret Dreier Robins, and Mary Barnett Gilson were analyzed to determine what management principles might have been common to these five women. The management philosophies of these late nineteenth century, early twentieth century women include: (1) achieving unity through diversity, rather than through uniformity; (2) placing value on relationships and human interdependence; (3) subjugating individual rights for the good of the group; (4) cooperating to achieve productivity in the workplace and peace in the world; and (5) providing information and education to all who have a part in a particular process. A 36-item bibliography is included. (JHP)