Career
Elworthy was the leader of the Federated Farms of New Zealand during the reforms in the 1980s. His business interests were equally strong, from being instrumental in the founding of the Ravensdown fertiliser co-operative (1977–1982) to his association with Auckland"s highly successful Sky City casino as a director He was knighted in the 1988 Queen"s Birthday Honours for services to agriculture.
Elworthy had two brothers, Jonathan Elworthy a New Zealand politician, and David Elworthy a publisher.
Elworthy owned a Tiger Moth aeroplane which he used to fly around New Zealand. In January 2004, Elworthy died suddenly of a heart attack early in the morning on the way to the bathroom.