The instructors themselves were drawn entirely from N.C.O.'s who had served with the 1st or 2nd line battalions overseas, and had either been invalided to the United Kingdom or were sent home for six months "on exchange." In order to avoid staleness no instructor who was fit for overseas service was permitted to retain his appointment for more than one year, at the end of which period he himself returned to the front as a reinforcement, his place on the training staff being taken by one more recently returned to England. Officer instructors were selected and retained on a similar principle, the period of appointment to the establishment of a training reserve unit being (in the case of physical fitness for service overseas) a maximum of six months. The officers of the first training staff appointed in the 4th (Reserve) Battalion were: Capt. F. C. Grimwade, in charge of training. 2/Lieut. E. G. Dew, Assistant to Training Officer. 2/Lieut. A. G. Croll;} Musketry Instructors. " G. H. Hetley} 2/Lieut. R. K. Caparn, Physical Training Instructor. 2/Lieut. L. A. Allen, Lewis Gun " 2/Lieut. L. C. Haycraft, Bombing and Anti-gas " Signalling instruction was provided under Brigade arrangements, the first Brigade Signalling Officer, 2/Lieut. R. C. Hunt, being supplied by the 4th (Reserve) Battalion. Early in February 1916 the 4th (Reserve) Battalion received a very welcome reinforcement in the shape of 50 men of the Second Trinidad Contingent, and the honour done to the Regiment in selecting it for the training of this draft, representative of one of the smallest and yet most ancient and loyal outposts of the Empire, was much appreciated. About the same time four Trinidad officers, 2/Lieuts. L. Farfan, H. Dow, R. L. Fabien and J. MacDonald, were gazetted to the Battalion. It was rapidly realised that the difference of climate between the West Indies and the snow-laden winds of the "Plain" was too severe, and it became evident that this keen and efficient platoon must be transferred to a more suitable environment. After about six weeks with the 4th (Reserve) Battalion, therefore, they were sent to complete their training with the 7th Royal Fusiliers at Falmouth and later attached to the 3/4th Devonshire Regiment in India. In April Major H. J. Duncan-Teape rejoined the 1/4th Battalion in France, the duties of second in command being assumed by Major G. H. M. Vine. During May the Battalion was inspected by Col. S. H. Godman, D.S.O., commanding the Division, who presented C. S. M. Risley, D.C.M., with his medal. The Battalion also received a visit from Lieut.-Col. E. T. Rodney Wilde, V.D. At the end of May the Division was reviewed by Field-Marshal Earl French, commanding the Home Forces.