I Should Be Extremely Happy in Your Company: A Novel of Lewis and Clark

I recently finished reading "I Should Be Extremely Happy in Your Company: A Novel of Lewis and Clark" by Brian Hall.  From the Publisher's Weekly review:

Narrated in multiple distinct voices, this retelling of the story of Meriwether Lewis and William Clark's legendary expedition is less a historical blow-by-blow than an engaging character study of the two men. Hall focuses on a few significant episodes in the journey-such as the hunting accident that wounds Lewis and causes him to sink into his famous depression-as seen through the eyes of Lewis, Sacagawea, Clark and Toussaint Charbonneau, Sacagawea's French fur trader husband. The result is a memorable portrait of the expedition leaders.

I started reading it a couple years ago.  It was slow going as I read it it little chunks.  I don't think that was the best way to read this book.  I had a hard time keeping track of who was narrating (Lewis or Clark) and the Sacagawea sections were also difficult to follow (intentionally, intending to represent her native American perspective). As I finally neared the end, I managed to "lose" the book about a year ago while on vacation in Tennessee.  It was one of those rare occasions when I was sitting in the the back of the van, and I stuck the book in a seat-back pouch.  Fast forward a year, I'm finally in the back of the van again and find the book and finally finished it off. I think I would have liked the first-person, faux-diary format better if it had stuck with one narrator.  I'm glad to have learned a bit about Lewis and Clark but figure it would have been more enjoyable in bigger chunks.