I thought it eliminated that William because of the birth year but my new information indicates that he could have been born that early. My problem is that all of the different census records I have found for him (both in Canada and the US) list age only, not an actual birth year. And, the ages listed are completely inconsistent so the basic math just doesn't work out. For example, the 1851 census lists him as 28 years old, the 1870 census lists him as 47 and the 1880 census lists him as 52! So, unfortunately I don't know exactly when he was born.