I had completely forgotten about this old thread.You might want to take a look at a couple of recent threads at the RootsWeb ROPER Message Board, including the threads with these titles, created by another researcher with a recent interest in this line:
"Charles Jackson Roper, Thomas Raper, William Roper, and James David Roper"
"Charles Jackson Roper, Thomas Raper, William Roper, & Shadrack Roper"
There is some reason to believe that Philip Lawson ROPER might be a son of David ROPER, of Cumberland, KY.This remains far from conclusive.
I would encourage you to read the discussion within these threads and use the analysis as a basis for further research and inquiry!