The following were invaluable resources for completing the first edition of the trail guide:

• Duke, James A. and Steven Forster, A Field Guide to Medicinal Plants, Houghton Mifflin, Boston, 1990.
• Duncan, Marion B. and Wilber H. Duncan, The Smithsonian Guise to Seaside Plants of the Gulf and Atlantic Coasts, Smithsonian Institution Press, Washington D.C., 1987.
• First Field Guide - Birds, National Audubon Society, Scholastic, New York, 1998.
• Levering, Dale, Ph.D., An Illustrated Flora of the Boston Harbor Islands, Northeastern University Press, Boston, 1978.
• McKenny, Margaret and Roger T. Peterson. A Field Guide to Wildflowers (of Northeastern and North Central North America), Houghton Mifflin, Boston, 1968.
• Mohlenbrock, Robert H. and John W. Thieret, MacMillan Field Guides - Trees, MacMillan Publishing Company, New York, 1987.
• Niering, William A. and Nancy C. Olmstead, Field Guide to North American Flowers (Eastern Region) - National Audubon Society, Alfred A. Knopf Inc., New York, 1995.
• Page, Nancy M. and Richard E. Weaver Jr., Arnoldia, Vol. 3, No. 4, Arnold Arboretum of Harvard University, 1974.
• Petrides, George A., A Field Guide to Eastern Trees, Peterson Field Guides, Houghton Mifflin, Boston, 1988.
• Scott, Michael, The Young Oxford Book of Ecology, Oxford University Press, New York, 1995.
• Stokes, Donald, and Lillian Stokes, Stokes Beginner's Guide to Birds, Little, Brown and Company, Boston, 1996.
• Symonds, George W.D., The Shrub Identification Book, William Morrow and Company, New York, 1963.
• Tiner, Robert W., Jr., A Field Guide to Coastal Wetland Plants (of the Northeastern U.S.), The University of Massachusetts Press, Amherst, 1987.