There's a great back-story to willamette written here. The article is actually about columbia hop, but goes into the history of how willamette was chosen instead.
Talking about NZ Fuggle, it won me a trip to NZ a couple of years ago in a TTL.
I think it's one of the must-have hops of all time if you are in Australia and attempting some UK styles which benefit from flowers as opposed to pellets.