The fonds consists of records regarding the formation of TransCanada Pipe Lines (1950-1958); editorials, articles and commentaries (1954-1959); political comments (1954-1966); natural gas distribution in Ontario and Quebec (1954-1959); natural gas distribution in the Prairies and British Columbia (1954-1966); pipeline construction (1954-1964; Royal Commissions (1956-1959, 1967); National Energy Board (1955-1976); USA Federal Power Commission (1955-1969); Oil and Gas Conservation Board / Energy Resources Conservation Board (1954-1965); TransCanada Pipe Lines officials (1954-1970); Alberta Government (1954-1974); TCPL gas markets and reserves (1951-1976); general background information (1935-1971); public relations (1950-1979); and publicity photographs (1956-1974). Includes information about Northern Ontario Pipeline Corporation, Robert A. Brown, James W. Kerr, Ernest C. Manning, Nathan E. Tanner and Gardiner Symonds.