I am looking for any information on the father of David Hamilton Bradford Gilliland who I believe was born in Pickens, Pickens Co., SC around 1842. He married Sarah A. Elizabeth (India) Lawson about 1875. She was also born in Pickens on 20 May 1857. Both died in Oxford, Izard Co., Arkansas. I have been unable to find any reference to David's father, except for a possible link to a Flemming Gilliland on the 1860 census showing the head of household at 45 years of age. Any clues on where to look or other help appreciated.