
Be the first in the room — members see you arrive.
Join the roomJonathan Hiatt Nicolson Dermot Irwin was a British-Irish bloodstock agent, auctioneer, stud owner, publisher, racetrack executive and charity founder. In 1997, he founded the Jack and Jill Foundation with his wife Mary Ann O'Brien, to provide home health care to severely sick babies. It was set up as a direct response to the couple's experience of caring at home for their son Jack, born with severe brain damage in 1996.