Our ancestors did not live in a vacuum. They lived, worked, socialized, and married in the midst of a larger group of people. Those people included not just family members but friends, neighbors, employers and fellow employees, fellow churchgoers, and business associates. Genealogists often refers to this group with the clever shorthand of the “FAN” club—their friends, associates, and neighbors. Researching this larger group of people often leads to greater success in reconstructing families. Ms. Smith provides guidelines and several case studies of applying the technique.