The family grows

A grandmother is showing her grandson Paul the family tree. Paul is trying to guess what the name of each member is.

Ark89

Ark89 (24)

Ark89
I speak:
Polish
I learn:
English, Spanish, German
Busuu berries :
8255

Grandmother: Let me show you here at the top, that is my father Robert. What would you call him?
Ark89: Let me think, he would be my great grandfather.
Grandmother: Correct, and this here is James, the husband of your aunt, what would you call him?
Ark89: Well, this is my uncle! Look how young he looks here.
Grandmother: Very good! What about this branch here? This is my mother Mary. What would you call her?
Ark89: This is easy grandmother; she would be my great grandmother.