John Norman Rishworth mentioned in the New Zealand Dental Services: Chapter 1 - The Origin and Development of the New Zealand Dental Corps in the Great War 1914-18
"In November 1915 the
New Zealand Dental Corps came into being. It was to be a separate organisation from the New Zealand Medical Corps, controlled by a Director of Dental Services in the rank of liutenant-colonel, with tw
o Assistant Directors in the rank of major. Mr Hunter became the first DOS and Dr Pickerill and Mr JN Rishworth were appointed as ADDSs. Principal Dental Officers were appointed to the main mobilisati
on camps, those dental officers attached to the NZMC were transferred to the new Corps and additional officers were appointed. The Gazette Notice of the formation of the New Zealand Dental Corps appea
red on 24 February 1916"