Ploughman sets his grandsons on the straight and narrow 11 Apr, 2021 09:30 PM 2 minutes to read Seasoned grandfather sets young ploughmen on straight and narrow. Video / ODT Otago Daily Times Dave McDonald is passing his enjoyment of ploughing to another generation of his family. At the 66th New Zealand Ploughing Championships held at Riversdale at the weekend, he encouraged his grandsons Riley (13) and Flynn (14) Hill, of Merino Downs, to compete in the contemporary event for novice ploughers. The championships were hosted by the Waimea Plains Ploughing Association at Sonia and Mark Dillon's property. McDonald said it made sense to teach the boys how to plough.