Heather Coyle

Clinton County Extension Director
(563) 659-5125

Brianne Johnson

Youth Development Educator
(563) 659-5125

Mark A. Schroeder, Ph.D.

Program Coordinator
(563) 659-5125

Kaitlyn Ketelsen

4-H/Office Assistant
(563) 659-5125

Clinton Extension

AmeriCorps Member-4-H Community Outreach Educator
(563) 659-5125

Vera Stokes

Human Sciences Specialist, Nutrition and Wellness
(563) 659-5125

Barb Dunn-Swanson

Human Sciences Specialist, Family Life
(563) 886-6157

Jeffery Macomber

Regional Extension Education Director for Region 16
(563) 886-6157

Assists in the coordination and oversight of all Iowa State University Extension and Outreach programs in Region 16.


Larry Tranel

Dairy Field Specialist
(563) 583-6496 ext. 14

Dairy Production, Economics and Dairy Business Development, Families and Youth

Greg Brenneman

Field Specialist Agricultural Engineering
(319) 337-2145

Livestock facilities including manure handling, ventilation and layout, farmstead layout, farm buildings, energy conservation, drainage, soil conservation practices, conservation tillage, no-till, ground water and surface water quality, private water supplies, water treatment, private wastewater treatment systems, grain drying and storage. Frequent Clients: Grain and livestock producers, homeowners, ag businesses, and government agency staff

Ryan Drollette

Farm and Ag Business Management Program Specialist
(319) 337-2145

Farm Management, Dairy Economics, Livestock Economics, Marketing, Risk Management, Decision Tools, Farm Leasing

Patrick O'Malley

Field Specialist - Commercial Horticulture
(319) 337-2145

Primary areas of expertise: commercial fruits and vegetables. Secondary areas of expertise: ornamental horticulture including greenhouse and nursery crops, and turfgrass

Virgil Schmitt

Field Specialist - Crops
(563) 263-5701


Denise Schwab

Field Specialist - Livestock/Beef
(319) 472-4739

Production information related to nutrition, facilities, health, records analysis, and pasture and forage management for beef and sheep producers. Individual consultation on improving productivity in livestock operations

Phyllis Zalenski

Human Sciences Specialist, Family Finance
(319) 465-3224

Empowering People. Growing Lives.

Tom Miller

Swine Program Specialist
(319) 653-4811
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