Correspondence files from the Central Bureau, most of them involving Frederick P. Kenkel and dating from his term as director (1908-1952); concerning Central Verein business and Catholic topics of the day, including a large file on anti-Catholic speakers claiming to be ex-priests and nuns. Correspondents include John J. Cochran, Brother Joseph Dutton, Mary Filser Lohr, Joseph Matt, John Rothensteiner, and George Shuster, and many prominent German Catholics.

Microfilm contains notes on early proposals for a Central Verein, ca. 1853; minutes of annual national conventions, 1855-1865, including treasurer's reports, corresponding secretary's reports, and resolutions; national convention programs, ca. 1888-1962; state convention programs, ca. 1896-1960; constitution and bylaws, 1895; constitutions of German Catholic benevolent societies; correspondence of Frederick P. Kenkel, 1938-1945; and a scrapbook from the 1937 Central Verein convention.

Printed material consists largely of convention material (programs, proceedings, and official reports of national and state conferences) with material from every national convention from 1893 through 1967, except for 1902, 1907, 1915, 1965, and 1966.

Programs generally contain greetings to the delegates from dignitaries of the host city, histories of host cities and parishes in host cities, histories of the national or state Verein, statements from national or state officers, a schedule of convention events, letters from church dignitaries, lists of officers, lists of delegates, lists of organizing committee members and sponsors, and advertisements.

In German and English.