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John Crosby Eldredge papers

Identifier: RS 9/9/51

  • Staff Only

Scope and Content

The collection (1915-1976, undated) includes biographical information, correspondence, personal records, clippings, government forms, booklets, blueprints, and photographs and negatives, related to the life and work of John Crosby Eldredge.

Ames Seed Farm records include promotional material from the 1940s sales manuals, seven negatives, and photographs of a corn-drying barn, orders for popcorn for 1948, memberships and booklets from the Story County Farm Bureau, and blueprints for a corn dryer. Correspondence relates to his farm loans, seed corn from Ames Seed Farm, and popcorn varieties with Confections Incorporated, a caramel corn company. The collection also contains stamps and forms related to rationing during World War II and a Farm Defense Plan for 1942. Other records include loan application material, leases (1935), notes, an eviction letter for a tenant, and aerial photographs related to the Ames Seed Farm (1938-1945). The government documents include material from the Department of Agriculture such as Application for Payment from the Agricultural Adjustment Administration soil conservation program and a cropping plan for 1937.

The biographical information includes Iowa State College alumni information forms, press releases, and an obituary. Other alumni materials consist of information from class reunions, mementos and correspondence regarding alumni activities of the Class of 1915. Published works in the collection include Agricultural Experiment Station Bulletins and correspondence related to Eldredge’s salary.


  • 1915-1976, undated

Language of Materials


Access Restrictions

Open for research.

Use/Re-use Restrictions

Consult Special Collections and University Archives


John Crosby Eldredge was born April 21, 1886 in Earlville, Delaware County, Iowa. He received a B.S. (1915) in Agronomy, an M.S. (1925), and a Ph.D. (1933) all from Iowa State College (Uniersity). After receiving his first degree, Eldredge worked as a County Agent (1915-1920) in Emmet County. He then took a position with the Emmetsburg Seed Company in 1920, where he worked for more than a year.

He joined the faculty at Iowa State with an appointment of Assistant Professor (1921-1937) in the Department of Farm Crops and Soils (later Agronomy). Eldredge became Associate Professor (1937-1960) and was elected to the Graduate Faculty in 1939. He remained a member of the faculty until his retirement in 1960, but continued to work for the University serving on the Committee on Agricultural Development into the 1970s.

Eldredge specialized in the research and development of popcorn hybrids. He produced many of the varieties with the identifier, Iopop, most notably, Iopop 6. He also operated Ames Seed Farm, a hybrid seed company south of Ames, Iowa in the Kelley, Iowa area in the 1940s. The firm primarily produced corn, popcorn, and oat seed.

He died in Ames, Iowa, on March 15, 1976 and was buried in the Iowa State University Cemetery.


0.84 Linear Feet ( 2 document boxes)


The collection is organized into three series:

Series 1, Ames Seed Farms, 1935-1949, undated (chronological)

Series 2, Writings, 1935-1961, undated (chronological)

Series 3, Biographical Information and Iowa State University Activities, 1915-1976, undated (chronological)

Items in related collections

RS 9/9. Iowa State University. Department of Agronomy records, 1903-2013

Processing Information

Released on 2018-11-01.

RS 9/9/51. John Crosby Eldredge papers, 1915-1976, undated
January 22, 2019
Description rules
Describing Archives: A Content Standard
Language of description
Script of description
Language of description note

Repository Details

Part of the Special Collections and University Archives Repository

403 Parks Library
701 Morrill Road
Iowa State University
Ames Iowa 50011-2102 United States
(515) 294-6672