What is the setting of Jacob's Ladder: A Story of Virginia During the War by Donald McCaig?

The presentation means there are two distinct settings, that of Miss Marguerite's home where she and the girl get to know each other and where Miss Marguerite tells her story, and a second in Virginia and other parts of the south in 1857. The settings are real and the events, including the Civil War, are also real. The story, set against these real settings, is more believable because of the setting. The dual settings are vital considering the method used to present the story.