Thomas Newcomen Archibald Grove, Dictionary of National Biography… (1886)
“ Rae, in his 'History of the Rebellion,' says of him: 'It must not be forgot that the Earl of Kilmarnock appeared here at the head of above 500 of his own men well appointed ... and that which added very much unto it was the early blossoms of the loyal principle and education of my Lord Boyd, who, though but eleven years of age, appeared in arms with the Earl his father.' This was in 1715, and the boy here mentioned succeeded his father as fourth earl of Kilmarnock in 1717. He was born in 1704, his mother being the Lady Euphane, eldest daughter of the eleventh Lord Ross. ”
