William Stewart was the fourth son of John, seventh Earl of Galloway, and at the early age of thirteen was appointed Ensign in the 42nd Regiment; but subsequently served in the 22nd and 67th, and with the former had seen service at the capture of the French West India Islands in 1793. We have seen that it was owing to Manningham’s and his suggestions that the Rifle Corps was formed; and after its embodiment he also addressed a long letter to the Adjutant-General on the discipline and internal economy of such a corps. His recommendations (which were adopted) were: that it should first be formed of volunteers from infantry battalions which best could spare them, and by men from the undrafted part of the Irish militia; and he added the (rather singular) opinion that Irishmen were preferable for Riflemen, as ‘perhaps from being less spoiled and more hardy than British soldiers, better calculated for light troops.’[18] He now set himself vigorously to organise and discipline the Corps thus formed at his suggestions. The standing orders of the Regiment, which, though issued of course in Manningham’s name, were probably principally compiled by Stewart, testify not only to his capability for organising and disciplining it, but in a most remarkable way to his pre-eminence above and beyond the military ideas of his time. The germs, if not, indeed, the actual existence of most of the late improvements for the training and advantage of the soldier are found in these orders. The good-conduct medal; the medals for acts of valour in the field; the attention given and the methods adopted to secure accurate shooting, dividing men into classes according to their practice at the target, and instituting a class of Marksmen; the rules for a regimental school, and for periodical examination of its scholars; the institution of a library; the provision for lectures on military subjects, tactics and outpost duties; the encouragement of athletic exercises; these and many other plans, carried out in the British army only after the middle of the nineteenth century, are inculcated in the original standing orders, and were adopted in the Regiment from its formation.[19] Sir Charles Napier, who was appointed to a lieutenancy in the Rifle Corps, December 25, 1800, and joined it at Blatchington, in his letters to his family, bears high testimony to Stewart’s ability in organising the Corps; though he seems not to have liked him, and eventually to have quarrelled with him. ‘Stewart makes it a rule to strike at the heads. With him the field-officers must first be steady, and then he goes downwards: hence the privates say: “We had better look sharp if he is so strict with the officers.”’[20]