David Mossman, a seventh-generation Canadian, was born in Rose Bay, Lunenburg County, Nova Scotia. As a geologist, he has consulted widely and taught geoscience most recently at Mount Alison University, New Brunswick, where he is research professor emeritus. In addition to numerous scientific papers, he has written biographies of noted geologists and articles on topics ranging from Nova Scotia gold, tidal phenomena, carbonaceous meteorites, and the trackways of extinct animals. His most recent book was Going Over: A Nova Scotian Soldier in World War I.