Duane F. Alwin—a sociologist by training, the author practices an ethnographic approach to doing family history, one that emphasizes going to the places where the families he resea...ver maisDuane F. Alwin—a sociologist by training, the author practices an ethnographic approach to doing family history, one that emphasizes going to the places where the families he researches lived, familiarizing himself with the environs, and tapping local resources for information on their historical roots.ver menos