A Man and Woman Union with children is the beginning of a Family Tree. A Father and Mother have sons and daughters. The brothers and sisters of a Husband and Wife are the Aunts and Uncles to their children. The children of the Aunts and Uncles are cousins to the children of the Man and Woman Union. The Mothers and Fathers of the Man and Woman Union are the grandparents to their children.

From each generation of Man and Woman Union children are produced and each generation adds numbers to the Family Tree. In a Man and Woman Union Family Tree there are blood relatives of Grandparents, Fathers, Mothers, Sisters, Brothers, Aunts, Uncles and Cousins. The Family Tree of A Man and Woman goes on for generations to come.