Is Skipper's birthday Feb. 9?

I've been trying to figure out just when Skipper turns 50, and I think I've found an answer.

The other well-known figure introduced at the 1964 Toy Fair was GI Joe. Thanks to Google, I discovered the pages of a book by Karen O'Brien which mentions the history of Joe.  O'Brien wrote that Joe was first shown at the fair on Feb. 9.  I'm assuming that is also the day Mattel introduced Skipper.

This link shows you the pages of the book:

http://books.google.com/books?id=OFQnYv7rdEcC&pg=PA334&lpg=PA334&dq=gi+joe+1964+toy+fair&source=bl&ots=p1VuI3Vt2z&sig=J3axHrOr96ymf9DcxtPbjBOGna4&hl=en&sa=X&ei=EPPVUrJz0IXJAY-1gbAO&ved=0CEYQ6AEwBA#v=onepage&q=gi%20joe%201964%20toy%20fair&f=false