I found one!!
Big Top Theatrical Productions
Famous Since '55
Shows for World's Fairs and International Expositions
John de Cuir
These men were part of the exhibits at the New York World's Fair as well as helping to create and build Disneyland and Walt Disney World
Claude Coats - "Brother Claude" at the Haunted Mansion - helped Mr. Toad's and the Carousel of Progress among others. Named a Disney Legend in 1991.
Marc Davis - "Dear Departed Grandpa Marc" and one of Walt's 9 Old Men. He helped with what seems like every attraction including Pirates of the Caribbean, Tiki Room, and Jungle Cruise. His wife helped sew the costumes for Small World (another fact learned from a WDW Radio Podcast). Disney Legend since 1989.
Bill Justice - Helped program many of the audio-animatronics around the parks, including Pirates and Country Bear Jamboree
John DeCuir - well, there were 2! John DeCuir, Sr. was a longtime Hollywood Producer (Hello, Dolly!), but worked with Disney helping to design the original Space Pavilion at EPCOT.
John DeCuir, Jr - a longtime Imagineer worked on Hall of Presidents, resorts, World Showcase, and more!