Clark and Division by Naomi Hirahara

 The Ito family is living a good life in California until the Japanese attack Pearl Harbor. Then they suddenly find themselves having to give up their home and getting shipped out to a detention camp. Most of the story takes places in Chicago in 1944, after the family has been released from the camp. They are supposed to join their eldest daughter, Rose, who was released first and had settled in Chicago. But when they arrive in the city, they find out that Rose is dead, supposedly the victim of a suicide at the subway station near Clark and Division. Younger sister Aki is devastated and is obsessed with finding out what really happened to Rose. Which takes her on a circuitous path as she is adjusting to a totally new life in a strange city, not sure whom she can trust.

It's a unique time/place for a World War II story. And you do get a good sense of the disorientation and danger Aki feels as she acclimates to her new home and tries to find out what Rose was doing in Chicago and how she ended up dead.