I found this on another site:
A statue honoring Roy O. Disney, Walt's older brother, was unveiled at Magic Kingdom on October 1, 1999. The life-size rendition is a tribute to the "business side" of the Disney brothers' partnership.
Through the years, friends and family called Roy a voice of reason, protector, and close friend of his little brother. He helped support Walt when he came to California in the 1920's, handled the company's finances for more than forty years, and oversaw the creation of the Walt Disney World Resort when Walt died in 1966.
Blaine Gibson, who created the "Partners" statue of Walt and Mickey at Cinderella Castle, also sculpted the statue of Roy and Minnie sitting on a bench in Town Square on Main Street, U.S.A.
Roy died in December 1971, shortly after the resort opened. His legacy, much like his brother Walt's, lives on.
(The Plaque at Disneyworld, with Roy's Opening Day Dedication as it reads

"WALT DISNEY WORLD is a tribute to the philosophy and life of Walter Elias Disney . . . and to the talents, the dedication, and the loyalty of the entire Disney organization that made Walt Disney's dream come true. May Walt Disney World bring Joy and Inspiration and New Knowledge to all who come to this happy place . . . a Magic Kingdom where the young at heart of all ages can laugh and play and learn together.
Dedicated this 25th day of October, 1971"
Hope this helps!