The couple had their £7.6 million win 13 years ago and since then have organized yearly visits to the farm. This year they have chosen pupils from Arbourthorne School.
"They will be spending a week at the farm doing some jobs," Ray said. "The aim is to give children who might not otherwise get the opportunity the chance to learn about the countryside."
The children, who are all aged between eleven and twelve years old, will learn how to collect eggs, ride ponies, and help with the other farm animals.
The Wraggs are famous for their generosity and have already donated most of their winning to good causes.