Donald Roderick MacLaren

Canadian First World War Flying Ace and Aviation Pioneer

How did a former fur trader from northern Alberta become one of Canada’s most successful First World War flying aces in less than eight months of combat? Major Donald Roderick MacLaren achieved that extraordinary transformation through courage, disciplined flying and an instinctive ability to lead men in the most dangerous skies of the Great War.

Born in Ottawa, Ontario, on May 28, 1893, MacLaren spent part of his youth in Calgary and Vancouver before studying at McGill University. After illness interrupted his education, he joined his father and brother at a remote fur-trading post near Keg River in northern Alberta. War eventually drew him away from the wilderness. In early 1917, MacLaren joined the Royal Flying Corps, trained at Camp Borden and continued his preparation in England before being posted as a second lieutenant to No. 46 Squadron in France. He would remain with the squadron throughout his entire operational career, rising from an inexperienced pilot to its commander within a year.

MacLaren’s success did not come immediately. After joining No. 46 Squadron in November 1917, he spent weeks learning the unforgiving characteristics of the Sopwith Camel and the realities of aerial warfare. His first credited victory came on March 6, 1918. From that moment, his combat record grew with astonishing speed. By the end of his operational career in October 1918, he had been credited with 48 enemy aircraft and six observation balloons, producing a total of 54 aerial successes and placing him among the leading Canadian fighter aces of the First World War.

His first Military Cross followed a remarkable operation behind the German lines. The award, published in the London Gazette on June 22, 1918, recognized MacLaren for attacking a long-range railway gun from approximately 200 feet. His bombs struck both the gun truck and the railway beside it. While returning, he shot down an enemy two-seat aircraft, destroyed an observation balloon in flames and then engaged and crashed another German two-seater. The official citation praised the example of gallantry and skill that he had set for his squadron.

But could such a dangerous pace continue? MacLaren answered that question in the air. His Bar to the Military Cross, announced in the London Gazette on September 16, 1918, recognized the destruction of nine additional enemy aircraft. The citation described him as a brilliant fighting pilot who repeatedly engaged enemy formations that were superior in number, rendered magnificent service and inspired the pilots under his command. The Bar represented a second award of the Military Cross.

Only days later, the London Gazette of September 21, 1918, announced MacLaren’s Distinguished Flying Cross. During the action described in the citation, MacLaren and two other pilots attacked four enemy aircraft. Every German machine was destroyed. MacLaren personally fought two of them down to within approximately 200 feet of the ground and destroyed both. The citation recorded that, in just four and a half months, he had accounted for 37 hostile aircraft and six balloons, demonstrating exceptional tactical ability and determination.

MacLaren was more than an aggressive fighter pilot. He was becoming an accomplished combat leader. After the loss of his squadron commander, he assumed command of No. 46 Squadron and continued to lead patrols against increasingly dangerous German formations. His Distinguished Service Order, published in the London Gazette on February 8, 1919, highlighted an engagement on September 24, 1918. MacLaren and three accompanying pilots attacked six enemy scouts even though a further sixteen German aircraft were positioned above them. Firing at point-blank range, he shot one enemy aircraft down in flames. The DSO citation concluded by recording his total of 48 enemy aircraft and six kite balloons.

France also recognized MacLaren’s wartime service. In July 1919, the French Republic appointed him a Chevalier of the Legion of Honour and awarded him the Croix de Guerre avec Palme. The official Gazette notice confirmed both decorations and granted unrestricted permission for them to be worn. Unlike his British gallantry awards, the published French notice did not contain a separate narrative citation describing an individual action. It recorded the honours as recognition of valuable service during the war.

Remarkably, enemy fire never ended MacLaren’s combat career. A broken leg suffered during a friendly wrestling match with another member of his squadron finally removed him from operations in October 1918. He returned to England and was still recovering when the Armistice was signed. His brief operational career had lasted only months, yet it had carried him from second lieutenant to squadron commander and Major.

MacLaren’s influence on Canadian aviation did not end with the war. He assisted with the development of the Canadian Air Force that emerged under the Canadian Air Board, then became an important pioneer of commercial aviation. He founded Pacific Airways Limited, conducted fishery patrols and aerial survey work, expanded northern operations with Western Canada Airways and later joined Trans-Canada Air Lines. His leadership also extended to Canadian youth aviation. In 1941, he organized an Air Cadet squadron in Winnipeg and later served as president of the Air Cadet League of Canada.

What makes Donald Roderick MacLaren’s story so compelling is not simply the number of aircraft he defeated. It is the speed with which he mastered aerial combat, the confidence he inspired in his squadron and the lasting contribution he made to Canadian aviation after the guns fell silent. Inducted into Canada’s Aviation Hall of Fame in 1977, MacLaren died on July 4, 1988, at the age of 95. His legacy endures as that of a fearless Sopwith Camel pilot, a decorated First World War flying ace and one of the builders of Canadian aviation.