Marshall County Extension Staff Detail

John Holmes

Title: Extension Field Specialist/Crops Area of Expertise: Crop Production Counties Served: Boone, Greene, Hamilton, Hardin, Humboldt, Marshall, Story, Tama, Webster & Wright Housed in: Wright Phone: (515) 532-3453 Fax: (515) 532-3415 Email: jdholmes@iastate.edu Address: 210 1st Street SW
P.O. Box 433 City,State: Clarion, IA Zip: 50525

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2501 S. Center St.
Suite N
Marshalltown, IA
50158

Phone: (641) 752-1551
Fax: (641) 752-8142
E-mail: arnelson@iastate.edu

Office Hours
Monday - Friday 10:00 a.m.- 5:00 p.m.

Find Us

2501 S. Center St.
Suite N
Marshalltown, IA 50158
(641) 752-1551
arnelson@iastate.edu