Talk:Aunt Sarah/@comment-4109966-20170301042836/@comment-27044397-20170304205224

Yeah, but we don't know if Sarah is the sister of Jim's mom or his dad. If she's his dad's sister, yes. But if she's his mom's sister, probably not.

For example, suppose your dad's last name was Smith, and your mom's maiden name was White. Your dad's sister's last name would be Smith, and your mom's sister's last name would be White.