Ancestry vs. Descendant
In order to get started you need to decide, "Do I need an Ancestry or Descendant Tree"?
Starts with the trunk names working into the past.
The main couple or individual person as the trunk. Parents, Grandparents, Great-Grandparents as the branches.
Starts with the trunk names working forward into the present.
The main couple or individual as the trunk. Children, Grandchildren, and Great-Grandchildren as the branches.