Since they are celebrating the centennial of his birth, I see no other reason for the commemorative to have the 1909 date.
Yes, that is a 1909 medallion/medal from the Whitehead and Hoag Co. in Newark NJ. (W & H Co.). There is no reason to believe it was made at a later time. Whitehead and Hoag were known to make a number of different politically themed items. There are a few on ebay. Don't know who the designer is, as I can't "read" what I am interpreting as his initials (the combination letter design to the left of the "The W & H Co."). Here's one being offered. I don't know if the JG790 is a number designation from some catalog for this or if it's the seller's number for his inventory. http://www.ebay.com/itm/ws/eBayISAPI.dll?ViewItem&item=360549166983&item=360549166983&lgeo=1&vectorid=229466
