Our Inventors

Walnut has had many inventors, most of whom were active in the late 19th and early 20th century.  Our most recent museum display documents our many inventors, inventions, and home-made devices.  At our museum Open House recently, we researched and displayed our inventors.  The below are selected files for review, as a sample of our collection.


Walnut Inventors and Inventions USPTO.gov

Guide to Key Inventors Displays

The Carstensen Harrow

Mary Gibbens Corn Harvester and Husk Baler

AJ Hansen Road Grader

Harmsen Milk Pail Attachment

Sample Displays


304 Antique City Drive; Walnut, IA 51577

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