David Pratt
MAST International Program Manager
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David is a graduate of the University of Minnesota and has worked at MAST since 1992. His love for international exchange began when he was an exchange student to Brazil in high school. In the MAST office, David coordinates training for crops, equine, and livestock. Contact him if you’re interested in being a trainee or host trainer in these areas, or if you’re interested in being an international partner.
Sue Riesgraf
Training Coordinator
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Sue came to MAST with an extensive background in horticulture and viticulture, as well as a passion for cultural exchange that she developed through studying in Scotland, working in Australia, and serving as a Peace Corps volunteer in Niger. Sue coordinates MAST’s training opportunities in horticulture and winery. Contact her with questions about training or hosting opportunities in these areas.
Lori Payne
Accounts Specialist
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Lori returns to her home state of Minnesota after spending many years roaming Colorado & California, and finally landing in the Pacific NW - with one small detour to spend a year abroad in Prague with her family. Lori coordinates the accounting for MAST, keeping the data organized and numbers balanced.
Heather Willis
Program Coordinator
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Heather is a graduate of the University of Minnesota. She was an exchange student to Ghana and France which jump started her career in international education, having now worked with students and professionals traveling to the US and around the world. Her mother’s side of the family is in agriculture so she grew up with an strong understanding of it’s the importance and impact. Heather helps with visa paperwork, orientations, communications, and more.