This collection contains newspaper clippings, photographs, brochures, and other marketing materials about the City of Petaluma. Includes video and other material on the 1979 Analy High School video class production on the Petaluma-Santa Rosa Railroad, Our train down Main.

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.