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Director, Arizona Experiment Station
Director for Research, Santa Rita Experimental Range
Professor, Range Management
Treasurer, Arizona Experiment Station
Director, Al-Marah Equine Center
Professor, School of Animal and Comparative Biomedical Sciences
Director, Cyber & Information Technologies
Resident Director, Safford Agricultural Center
Director, Graham County Extension
Extension Area Associate Agent - Agriculture
Director, Southern Arizona Experiment Station
Superintendent, V Bar V Ranch
Director, Yuma Agricultural Center
