If these are quilt tops, I strongly advise NOT washing them before they are quilted! There is a huge risk of distortion (different fabrics in the top shrinking at different rates) that cannot be ironed out, not to mention frayed seams.
Charcoal removes odors. Try putting each top in a plastic bag with a couple of Odoreaters shoe insoles (the ones with charcoal in them) for a week or two. This took the moldy odor out of a featherweight case for me after nothing else worked. I do not recommend using perfumed dryer sheets, that kind of thing, because to my nose the cheap perfumes simply make all the odors worse.