Together in Pinecone Patch by Thomas F. Yezerski

Together in Pinecone Patch by Thomas F. Yezerski, Farrar, Straus and Giroux Publishers, 1988, ISBN 0-374-37647-6
Publisher's Summary: A girl from Ireland and a boy from Poland overcome the prejudices held by the residents of the small American town to which they have emigrated.
Tags: immigrants, prejudices
Lots of possible uses for this book: character (they change a lot!), setting (from Europe to America), problems and solutions, and even sequence. The last page sums it up beautifully: "Keara and Stefan lived happily together for the rest of their days. Stefan told his children stories...His favorite story was about a boy from a land of golden meadows and a girl from a land of green hills, who came thousands of miles to a town of nightmares and dreams, just to be together."
Here's a link to the book on the author's website.