According to http://kidshow.dcmemories.com/circle4ranch.html Longhorn and Shorthorn were built for Circle 4 Ranch on WRC. --Erik Ebrowne 00:07, 24 March 2006 (UTC)
- Jim Henson: The Biography agrees. I'm removing them from the page. -GrantHarding (talk) 03:52, April 5, 2014 (UTC)