Yes, but (putting on my stupid hat here) how do we find said native authors?

One way that occurs to me is looking on Wikipedia for a category like http://en.wikipedia.org/wiki/Category:Caribbean_writers and digging around there.

There's a master list of writers by nationality here: http://en.wikipedia.org/wiki/Category:Writers_by_nationality

But Wikipedia itself suffers from systemic bias. And those lists don't give us any hints on which ones are writing historical fiction.