The Office and Professional Employees International Union was formed in 1965 from the Office Employees International Union (1945-1965). Local 21's (Atlanta, Ga.) membership is comprised mainly of clerical workers employed in the offices of trade unions. The records of Local 21, 1958-1979, consist of correspondence, financial records, minutes, grievances, organizing files, contracts, pamphlets, and periodicals.

The Office and Professional Employees International Union was formed in 1945 as the Office Employees International Union. The membership of OPEIU Local 455, located in Savannah, Georgia, is comprised of clerical workers and technicians who were employed by Savannah Electric and Power Company. The records of Local 455 (1976-2004) consist of correspondence, financial records, minutes, grievances, and monthly reports.