‘After forty years: retirement of Mr G. H. Mackley, CMG’. New Zealand Railways Magazine 14, No 11 (1940): 9, 12

Leitch, D. & B. Stott. New Zealand Railways: the first 125 years. Auckland, 1988

Obit. Wairarapa Times-Age. 29 April 1986: 3

‘Railwayman’s long and varied career’. Bay of Plenty Times. 7 Feb. 1980: 3