This window is a tribute to artist Joyce Carlson, an Imagineer and Disney Legend who, among other things, worked on every single version of the Small World attraction around the world. Sadly, Ms. Carlson passed away on January 2, 2008.
For more information, check out the 2003 interview Jim Korkis had with Joyce Carlson for jimhillmedia.com:
Part I
Part II
Part III