I was looking at the website of the Texas Scottish Heritage Society and came across the following quote about the Scotch-Irish by former American president Theodore Roosevelt, who held the office from 1901 to 1909.
The backwoodsmen were American by birth and parentage, and of mixed race; but the dominant strain in their blood was that of the … Scotch-Irish… Mingled with the descendants of many other races, they nevertheless formed the kernel of the distinctively and intensely American stock… fitted to be Americans from the very start.
Roosevelt also said, I am partly of Scotch-Irish blood myself,' and indeed he was. He was born in New York City on 27 October 1858 and was the son of Theodore Roosevelt (1831-1878) and Martha Bulloch (1835-1884). The Roosevelts were an old Dutch mercantile family but his paternal grandmother Margaret Barnhill (1799-1861) was the daughter of Robert Barnhill (1754-1814), a Scotch-Irish merchant in Philadelphia and the son of an Ulsterman, and Elizabeth Potts (1758-1807). His mother Martha Bulloch came from an established Georgia family of Scotch-Irish and Huguenot ancestry. The Scotch-Irish ancestors included William Irvine of Gleno and Annie Craig of Carneal, near Larne, who emigrated from Ulster to America in 1729.