Is this also considered, Shell Island?

Shell island is in Florida. That's the only one I know of

Thanks all...

No. It is sometimes referred to as West Ship Island. Never been called shell island, that is south of ship part of Chandeleur islands.

I don't think so. When we traveled there I did some research on the Gulf Islands National Seashore and didn't come across anything mentioning it by that name.

It might be