Michigan Womyn's Music Festival

The collection documents the history of Woman Sound (later City Sound Productions), the first all-woman sound company founded by Sandstrom and her partner, Casse Culver, in 1975. It is comprised of correspondence, financial records, legal documents, tax records, and general office files. The collection also includes research materials for Sandstrom's dissertation.

First held in 1976 in Oceana County, Michigan, the Michigan Womyn's Musical Festival (also known as MichFest or MWMF) was entirely staffed, built, attended, and run by women. The collection contains festival programs, newspaper clippings, correspondence, and memorabilia.