Elliott family

I have ancestors with the surname Elliott. The earliest one I know of was Thomas Elliott, who married Margaret Johnston in 1756 in Berwick-upon-Tweed. Their daughter, Margaret, is my ancestor... but it looks as though they had two sons as well. David's branch of the family is in Aberdeenshire. Thomas (junior) was a plantation owner in Jamaica. He had a number of mulatto children with a woman named Judith Sherman, and (as the story goes) he left property to some of these sons when he returned to Scotland with his wife. Yes... it appears he was married and having children with his wife during the same period when he was having children with Judith. The scoundrel!

I'm curious as to whether these Elliotts are connected to the Border Reiver Elliots. That would certainly be an interesting bit of information!