I made a bit of headway! I went back and looked at Robert's listing in a Civil War site and it listed him as being born in Union Co. N.C. I checked the 1850 Union Co. census but only found 2 households. James 55, Nancy 55, children James W. 19, John 25, G.W. 16, Mary 16 and Gdaughter Sarah A. 3. the other household was: Lucinda 33, Mary E. 6, John W. 7. My Robert B. should have been about 5 at the time, If the 1845 birthdate was correct. Oh well, it's a starting point!