Links and sources
Bibliography
Annabell, A. R. 'New Zealand's cultural and economic development reflected in song'. PhD thesis, Auckland, 1975
Obit. Monthly Notices of the Royal Astronomical Society 81, No 4 (Feb. 1921): 258--259
Obit. New Zealand Herald. 26 June 1920: 8
Orchiston, W. 'John Grigg and the development of astrophotography in New Zealand'. Australian Journal of Astronomy 6, No 1 (1995): 1--14
Orchiston, W. 'John Grigg, and the genesis of cometary astronomy in New Zealand'. Journal of the British Astronomical Association 103, No 2 (1993): 67--76