What sort of response did you want from me?? Let's try this one.
When it comes to trap knowledge in general and Newhouse trap knowledge in particular, there are any number of people in the trap collecting world that are far more knowledgeable than Robert Vance. Some of them have been listed above but there are quite a few more. I choose not to add to the list because I am afraid I will forget some one and they will be offended.
As for myself, I enjoy trapping collecting as a hobby but I am far from being an expert when it comes to all the fine details - such as original chain types and all the other details that people tend to nit pik over. I tend to stay out of the nit pik discussions unless I absolutely know for sure what I'm talking about.
I am fortunate to have a very good memory and an excellent set of reference materials. So, when some one describes a trap or
posts a picture, I am able to recognize what the trap is and respond accordingly. Some of the knowledge is automatic in my brain, otherwise I use my reference books. If you see a collector trap post about "what is this old trap" and I don't respond, it means I don't know the answer and I am waiting for some one more knowledgable to answer the question, rather than jump in with incorrect information.
And just for the record - I have made mistakes when posting trap information. Not many, but there have been a few in the 10+ years I've been on trapperman.