From the 1997 book The Great Kettles: A Tale of Time end papers and pages 28-29.

Clacking and chugging, the Old Number 3 wheezed its way to a stop. This train didn't need tracks to reach its Copper Kettle Island destination - the main engine's camera could lay track anywhere. That day, the Cow That Jumped Over the Moon was the only passenger. - Dean Morrissey