Here is a sample of a genogram of a family tree. Genograms allow the genealogist to graphically portray complex family trees that show marriages and divorces, reconstituted families, adoptions, strained relationships, family cohesion, etc.
A genogram is a graphic representation of a family tree that displays detailed data on relationships among individuals. It goes beyond a traditional family tree by allowing the user to analyze hereditary patterns and psychological factors that punctuate relationships. The genogram maps out relationships and traits that may otherwise be missed on a pedigree chart.