Howdy Jeff,
I'm hardly an expert. But, I've made a bow or two and have been lingering on this site for a while now (osmosis). With that, I would suggest that you seal the ends of those staves. (I use a couple layers of glue.)
Furthermore, if this is going to be your first try at bow making, I'd suggest you head down to your local lumber dealer and pick yourself out a board that has straight grains running the whole length of the board on a side and on the edge(s) (and longer than 60"). This would be a better starter bow. And, depending on the size board you buy, you can get more than one bow from a board. Go with hardwood; oak, maple, hickory...
Have fun at the Tenn. Classic.
Best of luck,
Canoe