Thanks for the response. I've been doing this a while so I know all about the limits of the Census records and the vital records in Tennessee and Kentucky. I was not asking for a tutorial on basic research. I thought this was a forum for communicating with people who are researching families from Weakley County.
There are quite a few family trees on Ancestry.com that dead end at Ruth Mary Smith. I believe that I found her Smith family, so I was offering my research to those people. Perhaps one of them has additional information to add about this family.