The 1967 Additions, in Box 1A, includes correspondence, minutes, financial reports, annual branch reports, 1959 bylaws, a 1962 membership list, newsletters, clippings, press releases, a variety of working papers, and a few items from the Wisconsin State Branch. It documents such League activities as participation in United Nations Day conferences and the Jane Addams centennial, and protests against nuclear testing and the dangers of radioactive fallout.

The 1974 and 1977 Additions, in Box 1B-4, consist of records created and collected by Judy Sikora, chairperson of the Madison branch and a member of the national board of the League. Included are records of the national organization, Madison branch, and scattered and general papers from Region #2 (Midwest), other WILPF branches, and other organizations.

The records of the national WILPF are composed of administrative records and general papers, many of which were sent to the local chapters in packets each month, to aid in planning, education, membership drives, and other activities. These also contain reports of meetings and conventions, publicity material, fliers, and information sheets pertaining to specific topics of interest to the group, and reference materials. Similar items are present in the records of the Madison branch, which also includes correspondence of local officers and news clippings. Most of these records and the material contained in the subject file date from 1969 to 1977 and document the League's involvement in peace activities, particularly in anti-Vietnam war, anti-draft, and amnesty work.