i think (but don't know for absolutely sure) some of the newer wools are washable. it would say so on the end of the bolt. in a case like yours, rebecca, i would assume it isn't.
you cannot "make it washable" if it isn't. all you can do is throw that sucker into the washer, then the dryer, and use it in the resulting state. it will shrink like a sunufagun, but only the first time.
test a 6 - 8" square of each one to see what happens.
OR make the quilts but plan to have them dry cleaned.