This collection contains records of the Santa Rosa Water Works Company of Santa Rosa, California between its establishment in 1873 and 1946. Includes journals and minutes, customer certificates, directories, annual reports, by-laws and directories.

This collection contains the Agricultural Commission contains handmarked maps showing the location of various commodities; annual certified producer's certificates for both in-county and out-of-county growers, and documentation showing annual registration of organic producers, handlers, processors located in Sonoma County.