Thanks to all... This has been a war fighting against the mildew smell and I'm beginning to believe it's hardly worth it. I even washed it in Mean Green along with a detergent, rinsed it well, and then washed it again in with Vinegar and Baking Soda. It helped but some odor lingers still. :( So, next I will get some Borax and try it and that will be my last attempt.
I tell ya, I did this because I wanted to salvage some retro fabric and I love a challenge but this is something else.
I'll let you know how the Borax does. Oh my...
Thanks everyone and esp. craftybear. Blessings, GrandPa