Here's what I think. There was an Oneida Indian chief, from whose name we take the name, Shenandoah, because of a trapper's song. That trapper's song was made into both a capstan and a wool-and-cotton shanty. I went to college in the Shenandoah valley and my roommate married a woman from Shenandoah VA. Here in Virginia we say " shen-an-do-ah," but this has nothing to do with how the trappers, or the Oneida chief, or the English and American sailors pronounced it. The important thing about singing this song is not to turn it in into elevator music. I have a recording from the Mystic Connecticut whaling museum that has the song as a capstan, but I have never heard it sung as a wool-and-cotton shanty. If anyone knows of a performance as a wool-and-cotton shanty, I'd appreciate a reference. By the way, here in VA, "Lafayette" is pronounced "la- feet."