"A project planned by the Centennial Commission in preparation for 1967 is to have school children, across the country, participate in tree planting in the parks of Canada, and for this area arrangements were made to have this done at the new Holland Valley Conservation Authority park in West Gwillimbury, north of Bradford, on Friday last. The project was in charge of the Canadian Centennial Commission and the Conservation Authority, with the trees and officials who directed the officials who directed the work of planting, from the Department of Lands and Forests." ...