This series consists of administrative materials, such as stationery, award certificates, general correspondence, presidential correspondence, and financial documents (budgets and membership dues), for both WICI and NYWICI. Most of the presidential correspondence is to and from the president of NYWICI, and some of it includes correspondence to and from the national organization. Topics in the correspondence include recruitment of potential members; queries on scholarships; conferences and events by other organizations; and inquiries by the organization asking individuals to participate in events, such as delivering the keynote address at the Matrix Awards.

This series consists of materials related to various luncheons, workshops, seminars, and conferences sponsored by WICI and NYWICI. Workshops such as Career Night, conference sessions such as "Opportunities for Women Journalists: Are the Doors Locked?" (from the 1960 National Convention in Colorado Springs), and awards and fellowships that support students and those new to the profession, reflect the organization's goal of providing professional development and networking opportunities. These materials include printed matter (flyers, invitations, and programs), photographs, audio and video recordings, correspondence, news clippings and articles, and planning files (guest lists and service orders). In addition, there are statements on various issues supported by WICI and NYWICI, such as the Equal Rights Amendment and freedom of information. Programs of note include luncheon lectures by Barbara Bush, Diane Sawyer, and Jane Pauley, 1982-1983, among many others.

This series includes materials from the governing bodies of WICI and NYWICI (Board of Directors, Executive Committee, and other committees, such as the Publicity Committee and Membership Committee, among others). Materials consist of meeting minutes and agendas, election materials, and correspondence. Also included are documents related to by-laws revisions and constitutions. Materials from the national organization and the New York chapter are filed together; in a few files, other chapters are represented (for example, materials on the Los Angeles chapter are filed with the 1959 folder). Topics covered include updates and reports on upcoming and past events, committee reports, membership updates, and board and committee nominations.

This series consists of materials related to the Matrix Awards, which honor women who have made a difference in the field of communications and are recognized as leaders in the profession. Begun by Theta Sigma Phi as a celebration that bestowed Honor Awards to female leaders in the fields of newspapers, magazines, radio, television, public relations, and advertising, the event became the Matrix Awards in 1970. Materials include photographs, printed matter (invitations and programs), correspondence, committee materials (lists of nominees and correspondence), budgets, an audio recording, press releases, and clippings. Some chapters outside of New York had their own Matrix celebrations, which are included here.

This series contains materials related to members of WICI and NYWICI, such as membership questionnaires, handbooks, statistics, membership applications, and correspondence. Also included are materials on the development of student chapters in New York universities and colleges, including New York University.

This series contains WICI and NYWICI publications that were a benefit of membership. Publications include Matrix Magazine, national and NYWICI newsletters, PRO/COMM: The Professional Communicator, and Career Forum. National issues of newsletters and membership directories appear before the issues of the New York chapter. Additionally, there are some newsletters from other chapters, such as Boston, Philadelphia, and Washington, D.C. Not all of the publications, such as Matrix Magazine, include complete runs of issues. Also included are the one-time publication, None But the Best: A History of Theta Sigma Phi (circa 1949); brochures; publications with seemingly shorter life spans, such as Leadership Bulletin and Job Information Bulletin; and publication guidelines from the national office. Newsletters cover such topics as individual spotlights, conference reports, by-laws changes, and award winners. Matrix Magazine includes more scholarly articles, on such subjects as the importance of using oral histories to record the past, the widening wage gap, and new technology.