Green Line System.

The Green Line System, whose corporate title was the Cincinnati, Newport and Covington Transportation Company, was an amalgamation of several northern Kentucky street railways which served the northern Kentucky/Cincinnati area beginning in 1876. The company also acquired the Dixie Traction Company which operated buses, cars, and limousines. The name of the parent company changed several times; it was first called the South Covington and Cincinnati Street Railway Company, and then named the Cincinnati, Newport and Covington Railway Company until 1955. David Leer Ringo served as president of the corporation, chairman of the board and as chief executive officer from 1950 until the Transit Authority of Northern Kentucky (TANK) took over the system in the early 1970s.

From the description of Green Line System papers, 1880-1986 1932-1958 (bulk dates). (University of Kentucky Libraries). WorldCat record id: 15482916