Kathy:

It would definitely be of value for us to "put our heads together" on this for two reasons: one is that family tradition does report that William Martin Wiley had a brother named John and the other is that there is some sort of family connection between this man and the Cato family.

Did your John Wesley Wiley live his entire life in Arkansas? Have you found him in census records? I suppose his death certificate did not give the name of either of his parents?