The archives' primary collection focus is Wendish heritage in Texas from 1555 to 1990. Collection includes: 16.69 cubic feet manuscript collections, 15.45 cubic feet institutional records, 800 books, pamphlets, 3,000 photographs, maps, one oral history, 13.47 cubic feet newspapers.
Ninety-nine percent of the printed matter, manuscripts, and certificates of the historical collection are in Wendish and German. Most of these are in the old fraktur printing and the old German script.
Five hundred and fifty of the books are rare, and focus on religious, historical, and educational subjects. Those most revered are the Kilian translations into Wendish and the original writings of Rev. Johann Kilian, the religious leader of the 1854 immigration. Many early editions of the writings of Martin Luther are included. There are also about 1,000 images, collections of personal papers, the Anne Blasig research collection as well as baptismal, confirmation, and marriage certificates. The portraits of wedding couples show the progression from the traditional black bridal dress of the 19th century to the grey and eventually the white of the 20th century.