Correspondence, notes, and drafts of manuscripts regarding the organization and subsequent history of San Salvador Council, No. 1, Knights of Columbus, New Haven, Connecticut, established in 1882; the history of the Knights of Columbus in Connecticut; early councils of the Knights of Columbus; and the financial difficulties of Catholic University in 1904. Correspondents include Thomas T. McAvoy, CSC. These papers seem to have been separated from Fr McAvoy's papers.

Printed material from a wide variety of Catholic lay societies, including the Knights of Columbus, the Catholic Knights of America, Catholic Central-Verein, Saint Joseph's Staats-Verband (State League) of Indiana, the German Saint Vincent Orphan Society, the Western Catholic Union, the Knights of Saint John, the Saint Vincent de Paul Society, the Legion of Mary, the Kolping Society, the National Catholic Alumni Federation, and various other lay organizations and sodalities.

The records of Notre Dame's Knights of Columbus Post 1477, including audio-visual material, photographs, and objects.