James Boswell, elder son of David Boswell of Auchinleck, succeeded to the paternal estate: he practised as an advocate, and attained considerable eminence in his profession. By his wife, Lady Elizabeth Bruce, daughter of Alexander, second Earl of Kincardine, he had two sons and a daughter, Veronica; she married David Montgomerie, of Lainshaw, and his daughter Margaret espoused James Boswell, the subject of this memoir. John, younger son of James Boswell of Auchinleck, studied medicine, and became censor of the Royal College of Physicians, Edinburgh. Alexander, the elder son, succeeded to Auchinleck on his father’s death in 1748. Through his father, Alexander Boswell was attracted to legal studies; he passed advocate 29th December, 1729, and after a period of successful practice at the bar, was in 1743 appointed sheriff of Wigtonshire. He was raised to the bench in 1754, when he assumed the title of Lord Auchinleck;[5] he was appointed a Lord of Justiciary in the following year. About the year 1739, Alexander Boswell married his cousin[6] Euphemia Erskine, descended of the ennobled House of Erskine of Mar. Her father, Colonel John Erskine, was a younger son of the Hon. Sir Charles Erskine, first baronet of Alva, and her mother was Euphemia, one of the four daughters of William Cochrane of Ochiltree, a scion of the noble House of Dundonald by his wife Lady Mary Bruce, eldest daughter of Alexander, second Earl of Kincardine. Of the marriage of Alexander Boswell and Euphemia Erskine were born three sons: John, the second son, became a military officer and died unmarried; David, the youngest, entered a house of business, and at the close of his apprenticeship in 1768 joined partnership with Charles Herries, a Scotsman, and Honorius Dalliol, a Frenchman, in establishing a mercantile house at Valencia in Spain. On account of the Spaniards being prejudiced against the name of David, as of Jewish origin, he assumed the Christian name of Thomas. On account of the war he left Spain in 1780, when he settled in London, and commenced business as a merchant and banker. He afterwards accepted a post in the Navy Office, where he became the head of the Prize Department. He purchased the estate of Crawley Grange, Buckinghamshire, and died in 1826. A man of grave deportment and correct morals, he was esteemed for his discretion, urbanity, and intelligence. By his marriage with Anne Catherine, sister of General Sir Charles Green, Bart., he became father of one child, Thomas David, who was born 24th September, 1800. This gentleman succeeded his father in the estate of Crawley Grange; he married in 1841 Jane, daughter of John Barker, Esq. Having died without issue, his estate passed to another branch of the Boswell family.