Haurongo: Easterfield, Thomas Hill
He whakaaturanga anō
Rārangi pukapuka
Miller, D. Thomas Cawthron and the Cawthron Institute. Nelson, 1963
Obit. Transactions and Proceedings of the Royal Society of New Zealand 75 (1950): 381--384
Rigg, T. 'Easterfield, Sir Thomas Hill'. In An encyclopaedia of New Zealand. Ed. A. H. McLintock. Wellington, 1966