I just received this reply from the Scottish Genealogy Society regarding the source material I requested. Unfortunately it may take some time to get reply so I am brainstorming about other avenues of research in the mean time. It does appear that earlier researchers on the Forgey line have seen documents that I have not located. I have no idea what what the sources are? Need the marriage source for Hugh Forgey and Catherine Fisher, and names of children.
2. I've also written to the Knox County Archives and received documents from their indexed sources (unfortunately not all records are indexed),