Tim Janzen is a medical doctor in Portland, Oregon. For the past 12 years he has been using DNA analysis to help complement traditional genealogical research. Glenn Penner and he are the co-administrators of the Mennonite DNA project at www.mennonitedna.com. Tim has a strong interest in many areas of genetic genealogy, particularly in regards to phasing and autosomal DNA analysis. Dr. Janzen speaks frequently on this topic.