Acosta Indians and Traders
Acostas were possibly Indian traders from South Carolina, as the name is listed in the surname index of a three volume set of Indian affairs journals, located at http://members.aol.com/rarebkhttp://members.aol.com/rarebk
Once at the site, go to Native American Genealogy, and then scroll down to the Cherokee Ancestry CD.There you will see a link to the surnames.
This site has some fascinating Indian genealogy research sources, to include an on-line tutorial that explains how to conduct effective Native American Genealogy research (the 1835 Cherokee census is within that), also 2 CD's that appear to have magnitudes of resource material, and a surname index to Starr's "Old Cherokee Families and their Genealogy."
There is more, but too much to list here.Very intriguing and unique site.