Bachelor of Laws, Woodrow Wilson College Law, 1941. Doctor of Philosophy, Oglethorpe University, 1970, Doctor of Philosophy, Georgia State University, 1998.
His massive Atlanta and Environs: A Chronicle of its People and Events remains the best reference for the city"s history. A native of Milwaukee, he moved to Atlanta as a boy. He joined the Atlanta Historical Society in 1927 (a year after it was founded) which is today known as the Atlanta History Center.
He served as historian for the Coca-Cola Company for 28 years.
After retirement he devoted his full-time efforts to the Atlanta History Center.
Member executive staff public relations, historian Coca-Cola Company, Atlanta, 1940-1968. Chairman, Fulton County (Georgia) Civil Service Board, 1955-1972. Served with Army of the United States, 1942-1945.
Named a City Shaper, Atlanta magazine, 1976.
Member National Railway, Virginia, Georgia, Atlanta History Society ( chairman of the board of trustees 1967-1968, director 1968-1974, historian 1974, trustee 1932), DeKalb County history societies, Newcomen Society North America, Atlanta Art Association, Atlanta Civil War Round Table, Grand Jurors Association Fulton County, Georgia Genealogical Society. Clubs: Rotary, Commerce, Piedmont Driving.
Married Frances South. Finney, 1978. Children by previous marriage: Patricia G. Marshall, Franklin Miller Garrett Junior.