New Hampshire Joint Board of Licensure - [website]
New Hampshire Land Surveyors Association - [website]
New Hampshire Association of Natural Resource Scientists - [website]
New Hampshire Department of Environmental Services Shoreland Protection - [website]
Donald R. Mellen, Wilbur C. Nylander and Norman Marquis during winter survey. Houlton, Maine - January, 1943.
Donald R. Mellen, James C. Schoenthaler, Wilbur C. Nylander and Norman Marquis outside U.S. Engineer Office, Norridgewock, Maine, summer 1943.
1948 Winter survey, Loosac Lodge, Bedford, Massachusetts.