This collection contains the Chenoweth Lumber Company's account book, purchase order book, log and stumpage records.

Official records of the Petaluma Cooperative Creamery from 1914 through 1974.

The collection contains personal papers and research materials accumulated by author and wine historian William F. Heintz. Includes business records, correspondence, newspaper clippings, personal records, transcripts of audio recordings, photographic material, video recordings, winery history manuscripts, notes and memorabilia.The materials focus on the history of wine and wineries in Sonoma and Napa Counties California, particularly in the areas of Alexander Valley and Sonoma Valley.