I finally found the 29 that I got in Boston (How did I lose 'em? Don't ask), and what's interesting is that several of the people depicted were killed by the Mexican (not spanish) government for treason. This includes Nicolas Bravo, who was president, and Agustin de Itrubide, who was Emperor (his decendents are still exiled). They also have Pancho Villa, who I was surprised would be put on one of these. He was murdered too, but probably not by the government.
Got a pic? How about this coin? http://www.dc-coin.com/una2009100amerossilverproof-likeseatedlibertywithddc-1-2.aspx