Howdy, As you can see, opinions vary widely on eastern red cedar's suitability for making bows. I happen to believe that ERC and other junipers can make very good bows. Junipers can be weak in tension, so a backing of some sort is a good idea. A good clean knot-free stave can work well with no backing, but the back must be pristine. I've made backed ERC bows to 65# and unbacked to 40#.
You will get many votes for Tightbond glues. Tightbond 2 works well in gluing on a mood or bamboo backing.
Ron