Why is this novel titled The Last Letter Home?

How do the Civil War and the Sioux War affect the Nilsson settlement and Karl Nilsson's family?

Why does Kristina die, and how does Karl react to her death?

Who is Ulrika, and how is her situation in America ironic?

How do Karl and Kristina feel about the Old Country compared to the New Country?

Describe Kristina's religious beliefs and attitude toward God. Compare and contrast this with Karl's beliefs and attitude toward God.

Why is Karl Nilsson called Charles Nelson in the Epilogue? What is the significance of the author changing the names of his characters for the final twenty-five pages of the novel?