One word: WOW! Did Bruce Gordon or Kim Irvine sign it?
No, they didn't. I've been in the garage for the past 20 minutes digging around for the figure and I found it! It's still in one piece. Some of the Imagineers I have autographs from include:
Don Goodman
Marty Sklar
Tom Dunlap (former head of WDI-Florida)
Joe Rohde
Tony Baxter
Harriet Burns (the first woman hired to WDI in a creative capacity. She came and spoke to the Imagineers in Florida when I was there and she was amazing! I love her so much!)
Joyce Carlson (the mother of "small world". She also worked on several animated features. She worked right there in the office with me and is the nicest woman you'll ever meet. You couldn't say hello to her without her talking to you for 30 minutes or more. She has a window on Main Street).
Alex Wright (author of the Imagineering Field Guides)
Jason Surrell (author of the Haunted Mansion and Pirates books)
Eric Jacobson
Kathy Mangum
Tom Fitzgerald
Cicero Greathouse
Joe Warren
Gary Landrum
Doug Griffith
and several others that worked with me in the office during my tenure (and several of them have been on those Travel Channel specials).