GenerationTree displays family relationships. The only required input is the name of each person. As the parents of each person are added, family relationships are analyzed and added.
Relationships include Great... Grandparents, Great... Grand Uncles and Aunts, Grandparents, Grand Uncles and Aunts, Parents, Uncles and Aunts, Siblings, Children, Nieces and Nephews, Grand Nieces and Nephews, Great... Grand Nieces and Nephews, Cousins, nth Cousins x times removed.