By Brenda Eyring, Customer Service Representative
The Common Ancestor Feature shows you when one individual appears more than one time in your tree.
The Common Ancestor Feature is simple to use:
1. Locate your toolbar at the top of your screen.
2. Click on the Common Ancestor icon. 
3. Look for blue boxes in your StarfieldT. A blue box means that individual appears more than once in your tree.
In the illustration below, Carroll appears twice. The blue box means he appears more than once. The blue line allows you to quickly find Carroll's other location. Carroll is Sanford Carroll's father, and he is Elizabeth Bartlett's grandfather. This means Sanford Carroll and Elizabeth Bartlett were uncle and niece before they were husband and wife.
As always, we are happy to help if you have additional questions, so don't hesitate to call 1-877-643-8733 or email if you need assistance.