On leaving school, Freddie took up employment as an engineer at the Great North of Scotland Railway works in Inverurie. He enlisted for war service in January 1915 and passed through cadet school as an officer in September 1916, at which point he joined the Royal Flying Corps. After further training, he was made a Flying Officer in April 1917.
Freddie had been on active service in France for just under a month when his plane crashed on June 13th 1917. He received mortal injuries and died on the evening of June 14th 1917.