@Tigla
The American-German route was never something I considered, so perhaps I did not make that clear in my initial post. My research interests in American history- the more thought-out plan- pertains to Americans using literature as a way to "cope", contemplate, and convey society as they see it. For instance, I brought up John Steinbeck. In his novel The Grapes of Wrath he depicts a rural American family's struggles through the Great Depression. It expresses their economic circumstances, makes references to Hoovervilles, and depicts California as the land of opportunity. My aim would be to take a novel like The Grapes of Wrath and analyze it from a historical perspective. Again, the details aren't fully flushed out, but that's where I'm at right now; to examine how Americans in the 1920s and 1930s conveyed their experiences through literature.
As for analyzing relationships between England and Germany, I kind of realized after I made my post that I'd be nearly impossible for me to pursue at a higher level as I do not speak German. I know Spanish, but that's clearly not relevant enough to my proposed research interest.