[2] After training at the Honourable East India Company's military college at Addiscombe, Wilson was commissioned in the Bengal Artillery aged eighteen.
As an artilleryman Wilson was appointed to staff positions which included adjutant-general of the Bengal Artillery and superintendent of the Cossipore foundry.
Wilson was to be criticised for his inactivity in Meerut, enabling the bulk of the sepoy mutineers to escape to Delhi.
[5] Departing on 27 May, Wilson did however lead his column to victory over the mutineers in an action between Meerut and Delhi on the 30th, then joined with the Delhi Field Force, the commander of which, Sir Henry Barnard, died soon after, Wilson being selected (in preference to three senior officers)[6] in command on 17 July.
In 1842, Wilson married Ellen, daughter of General Warren Hastings Leslie Frith, Commandant of the Bengal Artillery; they had no children, and he was succeeded in his baronetcy at his death in 1874 by his nephew, Roland, son of his eldest brother, Rear-Admiral George Knyvet Wilson, R.N.