I have the following specific answers to some of the questions you asked:
1. David was born in SC on July 4, 1793 and was married to Jane Miller of Tennessee on Aug. 31, 1815. I don't have the location in SC of David's birth. They had the follow children:
Lucinda b. July 8, 1816 in Tenn.
Henderson b. Dec 6, 1818 in Tenn.
Simpson b. Apr 19, 1822 in Tenn.
Jane C. b. Apr 11, 1824 in Tenn.
Mary Ann b. Aug 10, 1826 in Tenn.
Martha b. Nov 10, 1829 in Tenn.
William H. b. Mar 19, 1832 in Ill.
Wallace b. May 19, 1835 in Ill.
2. David's father was John. He came from Scotland with the British Army during our Revolution and decided to stay rather than return. I have not been able to get additional info on John.
I will be pleased to exchange info if you will give me a point of contact.