At the time of his retirement in 1973, following 48 years of service with the Holstein-Friesian Association of Canada (44 as general manager), George Clemons was recognized throughout the world as the dean of breed secretaries.

During his career with the association, he played an active role in the development of the Holstein breed in Canada, and in promoting the sale of Canadian Holsteins to many foreign countries. Not only did the breed advance to a position of numerical superiority over every other breed in Canada during this period, but more importantly, it made record improvements in both type and production.

Improvement within the breed was spearheaded by progressive breeders who put into practice policies introduced by George Clemons and his associates. These included: greater emphasis on production, selective registration, up-grading registration requirements for bulls, and the greater use of artificial insemination.

During travels outside Canada, George Clemons established many friends. As the result of these contacts, he was instrumental in initiating new and expanded markets for Canadian Holsteins.

Although primarily occupied with directing the affairs of the Holstein association, he shared his talents with other organizations, including the Advisory Committee for Dairy Cattle, the Artificial Insemination Board for Ontario, the Ontario Agricultural Research Institute, and the Joint Dairy Breeds Committee.

He was one of the founders of The Canadian Agricultural Hall of Fame Association, and served as its president during the years 1968-1970.