Printable Family Relationship Chart. To find the relationship between two people, first determine the common ancestor you share and your relationship to the common ancestor: Pencil in the common ancestor’s name, if it helps.

To find the relationship between two people, first determine the common ancestor you share and your relationship to the common ancestor: N choose person #1’s relationship to that ancestor from the top row of boxes, e.g. Pencil in the common ancestor’s name, if it helps.