The Other Side of the Family — Maureen Pople

In 1942 fifteen-year-old Katherine travels to Sydney, Australia, to stay with her mother's parents for the duration of the war, but, when Japanese submarines appear in Sydney's harbor, Katherine is sent inland to stay with her other grandmother at Parson's Creek.When fifteen-year-old Kate Tucker is sent to stay with Australian relatives until the end of World War II, she makes many humorous and startling discoveries about the supposedly "bad" side of the family