| Series W-1.1 | Catholic Worker Press Publications, 1933- | 
| Series W-1.2 | The Catholic Worker (Newspaper), 1933- | 
| Series W-2.1 | General Correspondence, Outgoing, 1933- | 
| Series W-2.2 | General Correspondence, Incoming, 1933- | 
| Series W-3 | Editorial Files, 1933- | 
| Series W-4.1 | St. Joseph's House and Maryhouse (New York City) Records, 1934- | 
| Series W-4.2 | Maryfarm (Easton, Pennsylvania, and Newburgh, New York) Records, 1935 (1936-1955)-1992 | 
| Series W-4-3 | Our Lady Star of the Sea Camp and Peter Maurin Farm (Staten Island, New York) Records, 1940 (1949-1964)-1978 | 
| Series W-4.4 | Catholic Worker Farm (Tivoli, New York) Records, 1912, 1946-1947, 1956, 1963-1980 | 
| Series W-4.5 | Peter Maurin Farm (Marlboro, New York) Records, 1979- | 
| Series W-4.6 | Catholic Worker Communities, 1933- | 
| Series W-5 | Financial and Legal Records, 1933- | 
| Series W-6.1 | General Subject Files, 1934- | 
| Series W-6.2 | Subject Files: Communities and Social Welfare Organizations, 1933- | 
| Series W-6.3 | Subject Files: Labor, 1933- | 
| Series W-6.4 | Subject Files: Pacifism and Conscientious Objection, 1936- | 
| Series W-6.5 | Subject Files: Surveillance of Dorothy Day and Other Catholic Workers, 1940-1990, undated |