Son of Hugh Seton (Smith) and Elizabeth Seton of Touch, Heritable Armour Bearer & Squire of the King's body, Governor of Penang from (1811-1812), & Governor of Prince of Wales' Island and Member of the Supreme Council Bengal, Writer in the East India Company, 1779. He was passed the estate from his ambitious father while a relatively young man during the lifetime of his father, who left the estate in considerable debt.  Archibald, determined to clear the estate of debt, joined the East India Company and sailed to India in 1779.

The lure of riches and the hope of advancement drew some of the most capable minds of a generation to the East. Those already in India when the Ship Stormont arrived included names that would soon play key roles in the Company's civil and military service, including Archibald Seton, writer of 1779. He was part of the generation that bridged the gap between the old mercantile-minded Company of the pre-Warren Hastings period and the new, imperialist one of the post-Wellesley era, and developed the ideology, perfected the institutions and trained the minds that administered and expanded the Company's Indian empire.

Archibald rose to high office, accumulated a considerable sum of money but sadly died on his way home before reaching Touch on whose behalf he has worked all his life.  Archibald's sister, Barbara, married Sir Henry Stuart of Allanton and inherited the estate. Sir Henry was a well known aboriculturist and planted many of the fine trees on Touch. He took the name of Seton-Steuart and their family remained the lairds of Touch until it passed to the Buchanans in 1928.  Sir Henry James Seton-Stewart, Bart., of Touch House, was the eldest son of Sir Reginald Macdonald Seton-Stewart, Bart., of Staffa, by Elizabeth, daughter and heiress of Sir Henry Stewart, Bart, F.R.S., of Allanton. He was born in 1812; succeeded, as third baronet, in 1838; and, in 1852, married Elizabeth, daughter of Robert Montgomery, Esquire. Sir Henry was hereditary armour-bearer and squire of the royal body in Scotland. The heir presumptive was his nephew, Alan Henry, elder son of the late Archibald Seton-Stewart, Esquire, by Catherine, daughter of Robert Stein, Esquire. He was born in 1856.