David is one of 4 children of a Montreal family. His Russian-born father owned a candy factory. His mother was one of 10 children of Russian émigrés from Uman. Being a railfan led him to an early job with Canadian National in passenger marketing research, an area he enjoyed. To broaden his experience, in ‘70 he joined the marketing research department of a packaged goods firm where he learned to moderate focus groups. After further experience in brand management, in ’76 he ventured on his own as a focus group specialist and moved to Toronto where most clients are located. For 38 years he did studies across North America for a diverse clientele, retiring in 2014. He has 2 daughters, 2 sons and 6 grands. David likes planes as well as trains, is a baseball fan, enjoys photography and cooking, has collections of antique cameras and pre-1960 rail and air timetables and has travelled globally.