Sounds like I'm asking you to do my research for me, but I thought, since you have a good record of Elizabeth's Roberts, you would know the name of the wives, which would tell me which Robert is my line. I have two records, one Susanna, wife of Robert, parents of Elizabeth Sinclair and Mary Torrance and two sons named in Grandpa's Will; the other, Capt. Robert McKee, wife Elizabeth, w/ kids the same names as my Saml. (Mine from court records).
If your article shows Eliza.Sinclairs father AND grandfather to both be Roberts, then your line is not from David. I was so sure the info I have that Sgt. Saml. was bro. of Capt. Robt Mck, wife Elizabeth, buried together in Greensburg, with both lists of children the same (mine from Court records) was not my Saml., but am beginning to think I am wrong. Donna