Wisconsin Music Archives at Mills Music Library, University of Wisconsin-Madison, has an unprocessed collection of materials from the Wisconsin Folk Museum in its archives. An inventory prepared by Ayako Yoshimura in 2003 provides access to the collection. Several boxes include materials related to the German-American Music Project. A "German-American Project" file contains correspondence, a tape index of an interview with Albert Kolberg, field notes on Syl Groeschl, project contacts, press releases, notes concerning the production of the Ach Ya! recordings, and release authorizations. The 7-inch reel masters are contained mostly in Boxes 7-9. Audiocassettes of German music in Wisconsin and interviews and a box of slides are also available. The slides include field documentation, copies of prints from the artists documented, and copies of prints from the Wisconsin Historical Society Visual Materials collections. Finally, there are numerous posters, pamphlets, scores, and newspapers collected during the project.
The Wisconsin Historical Society Library-Archives Division has 69 folders associated with the German-American Music Project. The "Wisconsin Folk Museum Records" (call number M98-044) contain files formerly maintained by the Wisconsin Folk Museum. The files include tape indexes, field notes, flyers, copies of newspaper articles, letters, and some release forms. The Wisconsin Historical Society Museum Division possesses concertinas obtained during the project.
The University of Wisconsin-Madison Folklore Program houses the slide/tape program, which consists of 79 slides and an accompanying audiocassette, plus slides, 898 negatives, and contact sheets of Lewis Koch's photography and historical images. Koch's work includes depictions of musical performers, dancing in clubs, and a Fourth of July parade. Many of the slides of historical images were made from images in the holdings of the Wisconsin Historical Society.
