Lt. (later Brigadier General) Donald M. Clark in England wearing Service Dress, 1940. Photo - (Reversed image). Donald M. Clark served in the Seaforth from 2 September 1939 to 25 September 1945. In 1938 D.M. Clark graduated from the Royal Military College in Kingston. He was the acting adjudant when the Seaforths left Vancouver for England. In January 1942 Clark became the OC of C Coy. On 30 December, 1943 Major D. M. Clark arrived to assume the duties of second-in-command. Serving in "A" Company at the same time was his brother, Lt. J. A. Clark. Both were sons of the former commanding officer of the 72nd Battalion, C.E.F., Brigadier General J. A. Clark, who was still very active as Honorary Lieutenant-Colonel of the regiment. In June 1944, Thomson's second-in-command, Major D. M. Clark, was in hospital with jaundice. As the unit was known to be going into action soon, the selection of a new C.O. could not wait, much to Clark's disappointment. Budge Bell-Irving returned to take his place. On 12 May 1945, Bell-Irving, the Commanding Officer was promoted to Brigadier to command the 10th Canadian Infantry Brigade. His place was taken by Lt-Col. D. M. Clark, who had been second-in-command of the Seaforths in Italy and, more recently, had been on the staff of Headquarters, 11th Canadian Infantry Brigade. At the final homecoming parade, the formalities were exceedingly brief - a few one-minute welcome speeches by several dignitaries, a brief reply by Lt-Col. D. M. Clark, and then the order "Dismiss". After the war, Colonel Forin reverted to Lt-Col. to take command and his second-in-command, Lt-Col. D. M. Clark, reverted to the rank of major. He was the CO from 12 May 1945 to 1 January 1947 and in 1950. In June, 1957 Brigadier D. M. Clark's donated the Infantry Sword Trophy for the best platoon in infantry tactics was won by 2/Lt. Angus Percival's Seaforth men.