A good place to start genealogical research is to research the historical census information.  This information can be found online by visiting one of the websites below.
Family Search 
Heritage Quest (available through GALILEO)

The second place to search is 
GALILEO, the Georgia Library Learning Online is provided to residents of Georgia free of charge.

The 1940 Census  Access to Ancestry Library Edition has been temporarily expanded to library cardholders working remotely, courtesy of ProQuest and its partner Ancestry. This access will be available through December 31, 2021. Please contact your local library branch for more information on how to access this valuable resource.
Athens Historic Newspapers Archive
Atlanta Historic Newspapers Archive
Columbus Enquirer Archive
Digital Library of Georgia
Georgia Department of Archives & History
Georgia Historic Books
Georgia History ebooks
Georgia Historic Newspapers
Georgia Newspaper Directory
Macon Telegraph Historic Newspapers 1826-1908
Milledgeville Historic Newspapers Archive
Sanborn Fire Insurance Maps for Georgia Towns and Cities, 1884-1922
The Southern Israelite Archive
Voyages: The Trans-Atlantic Slave Trade Database