Absolutely there are two lines, and I feel certain they are connected at some point......alas, I could not find that point. I hope that if anyone ever does, they will post it for us. The two lines I believe to be connected are: 1. David Blalock born before 1780 married Mary and had sons Robert, Richmond, David, Merritt, Sidney, Simeon. David the son married Elizabeth Swaringen. 2. David Blalock married Martha Dennis and had 13 children. This is the David in the 1812 Pension Files. The first David is my ancestor, and I have only what I call a "preponderance of evidence" as they say in court. No actual proof.