Thanks for all the info. If this island is "gone" from the storm, that is an extraordinary story!
It is false to state that Ile de la Tortue was covered by Jeanne. Its highest elevation is 459 meters, and most of the island has an elevation above 100 meters ((about 110 yards)).
However, riverfront or beachfront dwellers were probably also impacted as badly as their counterparts on the Haitian mainland. But with communications not reported, no one knows yet.