Maybe, but I'd start by contacting William's and asking if they'd tell you.
I remember a couple other threads over at NB that specifically chapped my a$$ that William's brewing does not share their recipes or ingredients. Which is so stupid that I would refuse to ever buy anything from them. No homebrew shop recipe is so great that they can't tell you what is what, and how the hell can you learn how to brew if you don't know what different ingredients do?
If it were me I would contact them, and if they don't give you the recipe I would tell them you won't buy from them anymore, and then stick by that.
As far as telling hops from smell, its possible but pretty darn hard. You can usually tell if it is an American "C" hops fairly easily. I can pretty much tell Columbus, from Amarillo, from Centennial from Simcoe - but, gosh, it would be pretty easy to make a mistake going in blind.