Passed away on June 12, 2006, four days before his 90th birthday. The youngest of six children, he was born and raised in Sydney, Australia. Following service in the Australian Air Force during World War II, David came to the United States to attend graduate school. He received his Ph D in statistics from Iowa State University in 1947. After several years at Virginia Polytechnic Institute, the University of Florida and the University of North Carolina, he joined the Johns Hopkins University Department of Biostatistics in 1960, working as a professor until his retirement in 1984. Amongst his many achievements was the creation of the Duncan Multiple Range Test, which was the standard in the field for two decades. His original paper on the topic is still one of the most cited papers in medical literature. David married Mary Ann Kohli in 1948 and they retired to Carmel in 1985. A sports enthusiast, he loved tennis and swimming and was a regular at the Pebble Beach Club swimming pool. In addition to his wife, David is survived by his children, Robert and George Duncan and Margaret Lane and seven grandchildren. A Celebration of David's life will be held at the Church in the Forest on July 7, 2006 at 2 P.M., Carmel, CA.