Thanks so much for letting me know about the Missouri census info, I'll check it out the next time I go to the history center. It is interesting that both MO and IL would have counties named Pike right across the river from each other...hmmm, will have to study my history of this area a little more. I have paternal ancestors from MO also!
I have been doing some 'patent' (land) research on USGenWeb. Looking for Isaac or Charles Wille/iford as land owners in Illinois proved negative, but found Isaac owning land in California in the 1800's. This is strange...were there 2 Isaac's? aha!, now must do more sleuthing... Again, thanks, Peggy Grenz in CA