Step 1. Log in to your Facebook profile.
Step 2. On the left side next to your profile photo on "Edit my profile".
Step 3. Click on the left "friends and family."
Step 4. Now get on the right the "family" to see.
Step 5. Now enter the first name of the person you wish to add to your family.
Step 6. Then click "select related" and select the appropriate relationship.
Step 7. If you want to add more people click on "add a family".
Step 8. This way you can refer your family on Facebook.