1. Natural Resources Canada, Canadian Forest Service – Atlantic Forestry Centre, P. O. Box 4000, Fredericton, New Brunswick, Canada E3B 5P7
2. New Brunswick Department of Natural Resources, Tree Improvement Office, 3732 Route 102, Island View, New Brunswick, Canada E3E 1G3
3. Acadian Seaplants Limited, 30 Brown Avenue, Dartmouth, Nova Scotia, Canada B3B 1X8