David Pratt
Program Manager
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
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.
Joan Petersen
Accounts Specialist
Joan has traveled throughout the world and has a love for all things international, especially trainees and interns! Joan deals with all of the money for MAST as well as operations management. Contact Joan if you have questions about bills and payments, insurance enrollments, or evaluations and certificates.
Leah Bliss
Academic Coordinator
Leah grew up on a farm in southwest Minnesota where she developed a fondness for nature, animals, and rural communities. She has since spent several years studying and working abroad in Germany, Norway, and most recently Finland, where she lived with her family in the Finnish countryside.