The 3rd Baronet of Goodtrees, the subject of this article, inherited his baronetcy and estates at the age of fourteen. He eventually acquired much of the possession of his cousins, the senior line of Steuarts. Sir Thomas Steuart of Coltness, had married twice: to Margaret Elliot, his step-mother's daughter, and then to Susan Denham, the sister of Sir William Denham, 1st Baronet of Westshield, Master of the Mint for Scotland, and had fourteen sons by them. His eldest son had sold the "estate" and mansion (but not the title) of Coltness to 3rd Baronet of Goodtrees' father, in 1712. The 3rd Baronet of Goodtrees is, therefore, often called of Coltness, since it was his house.