Leffingwell, Randy (1948-). Papers.
Collection Number: D-571
- 43 linear feet
- Agricultural technology historian and author of The American farm tractor (1991), John Deere farm tractors (1993), Classic farm tractors (1993), and Caterpillar (1994).
- Leffingwell’s photographic transparencies as well as his research notes for his books: Ford Farm Tractors (1998), International Harvester Tractors (1999), Farm Tractor Milestones (2000), and John Deere: A History of the Tractor (2004).
- Inclusive Dates
- Agricultural Technology
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