Colored lines can mean all the difference in the world when creating a family relationship genogram. Genealogists have created a system that can display all the different types of relationships that people can have in their family history and family tree that include love affairs, cohabitation, divorce and many more. Below are the common family relationship genogram symbols. You can get some genogram templates hereGenograms can be created easily and be kept simple or get complex depending on how much detail you want to show. They’re created with simple symbols representing the gender, with various lines to display family relationships. You can create them in Microsoft Word or special Genogram programs. I suppose you could even create them on old fashion paper.