Commissary-General Havilland Le Mesurier (1758–1806) was a British merchant and commissary officer who also published on military matters.
His parents were John Le Mesurier (1717–1793), hereditary Governor of Alderney, and his wife Martha (d. 1764).
[1] After war broke out with France in 1793, and with his business suffering as a result, Le Mesurier took a commission in the army sent to assist the Dutch.
He resigned in 1800, when the post of commissary-general of all England went to Brook Watson, with whom he had worked during the Dutch campaign [2] but whom he did not respect.
[1] In 1801, with a new government in place, Le Mesurier was appointed as commissary-general to the army preparing to return from Egypt, and also saw service in Naples and Malta.