1. The American Chestnut Foundation, Asheville, NC 28804
2. The American Chestnut Foundation and Chestnut Return Farms, Seneca, SC 29672
3. Department of Forestry and Environmental Resources, North Carolina State University, Raleigh, NC 27695
4. United States Department of Agriculture Forest Service Resistance Screening Center, Asheville, NC 28806
5. Department of Plant and Environmental Sciences, Clemson University, Clemson, SC 29634