* 1982 merged with Louisville & Nashville Railroad to become Seaboard Systems Railroad.

1967 merger of Seaboard Air Line Railroad with Atlantic Coast Line Railroad.

1969 - acquired the Piedmont & Northern Railway.

1982 - sold assets to the Pee Dee River Railroad.

1984 - (as Seaboard Systems Railroad) sold assets to the Horry County Railroad.

1985 - (as Seaboard Systems Railroad) sold assets to the Port Royal Railroad #2.

1986 merged into CSX Transportation, Inc.