The collection contains mounted photographs used presumably by the Alameda County Schools Curriculum Materials Center and later by the Hayward Unified School District as a teaching tool. The photographs are related to three subjects: dairy farming, the Delta Mendota Canal Fish Diversion Facility, and cattle ranching in Alameda County. The photographs were presumably taken circa 1950-1959. Captions from the back of each photograph have been used in the descriptions.

The collection contains mounted photographs used presumably by the Alameda County Schools Curriculum Materials Center and later by the Hayward Unified School District as a teaching tool.

0.8 linear feet; 76 mounted photographs

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