Wow, you really know your cards. So these are two different guys? Well then I don't think it a variation in the true sense of the word, but I'm a total noob, so what do I know. Maybe it's just a variation on the name Wagner?
Here's where I got the idea:
http://www.vintagecardprices.com/car...lue-Prices.htm
Could be totally misleading as far as I know.
Thanks,
Edit: I don't have the Birmingham, so I can't compare the faces.