Dewy is the first known foal of Rainbow, and was sired by either by Thunder or Cyclone who were the farm stallions at the time. She was a chestnut pinto and her birth was announced in the Virginia Beachcomber as she was the first great great grandfoal of Misty born on the Chincoteague Miniature Pony Farm. She was briefly called "Raindrop". Rainbow and Dewy made some public appearances for the Pony Farm. She is listed on the family tree in The Pictorial Life Story of Misty. Dewy was probably sold but it is not known exactly what happened to her.