"John ...... died without issue about 1754, succeeded by his brother William. William LAWSON married Margaret, a daughter of Archibald HAMILTON of Dalziel and Rosehall, and in 1772 executed a conveyance of his property to the heirs male of that marriage or of any subsequent marriage, whom failing to Marion LAWSON, his eldest daughter. After Margaret HAMILTON's death, he married in 1776 Macfarlane, daughter of John SPOTTISWOODE of Spottiswoode in Berwickshire. William LAWSON died in 1806.... Footnote : The claims of the LAWSON family to royal descent and to kinship with the great families of Scotland are beyond dispute. The marriage of William LAWSON with Macfarlane SPOTTISWOODE gave them descent not only from James I of Scotland but from Edward III of England. Macfarlane SPOTTISWOODE's maternal grandfather was the second Viscount Arbuthnot, who was seventh in descent from William KEITH, third Earl Marischal of Scotland, whose maternal grandmother was Annabella, Countess of Huntly, daughter of James I of Scotland, and his wife, Joan Beaufort, grand-daughter of John of Gaunt, son of Edward III." History of Peeblesshire Pg 153.
