I've been meaning to post this for the longest!! Anyone looking for Catawba ancestors? I found a site "Native American Records Relating to South Carolina".
The discussions/queries are on the right side of the page but the Catawba migration to Florida is on the left side of the page. I tracked this page down looking for my own Brown ancestors who moved to NW Florida back in the 1800s from Virginia. Please take a look! If you have family that up and left, well, this source may help explain what happened.