Dorothy Clark on Challenger & Buddy Butch (Doris) Ramsey on (forgot name) & Skippy Sharon (Cookie) Lotz on Cherokee & Archie
Kathy Zeuchel (Kirkpatrick) on Trigger & Dreamboat (Don't remember rider's name) on Billy & Bobby.
Actually I don't remember anyone calling Mr. Ivory "Uncle John". We always called him the "old man", but never to his face.
He was always "Mr. Ivory". Others referred to him as "John F.". We called the referee, Don Hurd, "Uncle Don".