He was the eldest son of a judge, Alexander Boswell, Lord Auchinleck and his wife Euphemia Erskine; he inherited his father's estate Auchinleck in Ayrshire.
He was the eldest son of a judge. He was the eldest son of Alexander Boswell. He was the eldest son of Lord Auchinleck. He was the eldest son of his wife Euphemia Erskine. He inherited his father's estate Auchinleck in Ayrshire.