Dash is the father.
Dash isn't the father. He is the brother.
Violet is the cousin.
Violet isn't the cousin. She is the sister.
Elastigirl is the mother.
Correct
Niny is the aunt.
Niny isn't the aunt. She is the grandmother.
Mr. Incredible is the uncle.
Mr. Incredible isn't the uncle. He es the father.
Jack Jack is the grandfather.
Jack Jack isn't the grandfather. He is the baby.
Mindy is the aunt.
Correct
Mr. Harold is the brother.
Mr. Harold isn't the brother. He is the grandfather.