The Correspondence series, arranged chronologically, includes John Cashmore, Luther Hill, Paul O'Dwyer, Michael J. Quill, Leo Rayfield, Nathan Sobel, Andrew Sommer, Henry Stimson, Harry S. Truman, Robert F. Wagner, Henry A. Wallace, and Walter Wilson.

The Speeches and Writings series contains It Happened at City Hall (Cacchione's Daily Workercolumn) and other articles, radio addresses, news releases, two unpublished Cacchione play typescripts, "Builders of America" and "Pageant for Columbus Day," and two book-length unpublished typescripts "What is Public Speaking?" and "A Few Simple Hints to Speakers," which are notable (especially the latter) for their use of 'how-to' examples based on numerous accounts of contemporary political issues, many at the grassroots level and ephemeral in nature.

The Topical Files series (arranged alphabetically) contains multiple files on discrimination, electoral campaigns (PVC, others), the five cent (bus and subway) fare, housing, proportional representation, resolutions (City Council and other) wartime price controls, and individual files on other local issues, and on Cacchione's 1947 national speaking tour.

The City Council series largely consists of PVC-issued Budget Questionnaire forms completed by officials of several hundred New York State cities, towns, and villages, and various documents and ephemera.

The last series consists of scrapbooks and loose material removed from scrapbooks (not microfilmed) documenting Cacchione's political career from 1939 to 1945.