Hoo boy. I seem to start out a number of these articls saying, “I’ve always vaguely thought . . . “ and then explaining why I was wrong. Well, here’s another one. I’ve always vaguely thought that “Oh Shenandoah” was about the Shenandoah River and/or Valley Didn’t you? The river with that name runs through the valley in Virginia and West Virginia, although it’s not a major one but instead a tributary of the Potomac. (There’s also a Shenandoah River in New Zealand, but we won’t worry about that one.) So my vague impression was that the speaker was from the Shenandoah Valley/River and loved that part of the country but he was having to leave it to cross the wide Missouri.
Here’s an important line that gives a helpful clue: “Oh, Shenandoah, I love your daughter.” Let’s parse this out. If the Shenandoah in the song is a river, then the river’s daughter is . . . what? A stream? Doesn’t make too much sense, does it?