Thanks for your reply. You may be right. I did see the William Westby living in WI. There are quite a few Westbys living in the Dane and Rock county areas of Wisconsin. However, I think its worth looking into.
One thing I remember hearing is that he had lied about somethings. Not sure what they were, but I'm guessing part of it could have been his age. A picture I have of his wedding day, he looks much younger then 36, which is what he would have been if born in 1880. Being my great-grandmother was older, he could have twisted his age a bit.
I've been trying to look at every Roy/William/Ray Westboy/Westbay/Westby, and deduct all that are absolutely not him.
I'm also trying to get copies of my great-grandmother's naturalization records to see if there is any information in those regarding him. We'll see.
Thanks again for your help!