Here are some sources that might (or might not) help with Franklin County, GA research:

Index to Deeds of Franklin County, Georgia 1784-1860

Franklin County Georgia Court of Ordinary Records 1787-1849

Franklin County Georgia Marriages, December 1805- December 1850

Franklin County, Georgia Tax Digests

All of the above are compiled by Martha Walters Acker

Franklin County, Georgia records by Frances Wynd

Hope this helps someone!
Katherine