Manuscript Collections
Blackwelder Manufacturing Co. Records.

Collection Number: D-326

123.9 linear feet
Manufacturing firm located in Rio Vista, California since 1902 whose work focused on the development of tomato harvesters and other agricultural equipment.
Business records, correspondence, photographs, patent information, manuals, bills of material, drawings, blueprints, and specifications.
Inclusive Dates
Agricultural Technology
Additional Collection Information
Finding Aid on the Online Archive of California (
View digitized films from the Blackwelder Manufacturing Records on the Internet Archive (
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