The 14th Brigade, C.F.A., was organized in the spring of 1916 and was part of the 4th Division Artillery, which trained at Petawawa in the summer of 1916. The 14th Brigade, under the command of Lieut.-Colonel John L. McKinnon, of Halifax, N.S., was composed of the following Units: Headquarters, 7 officers, 40 men, recruited in Nova Scotia. Batteries, 55th and 56th, recruited in Guelph, Ont.; 58th, recruited in New Brunswick; 66th, recruited in Montreal. Brigade Ammunition Column, 3 officers, 120 men, recruited in Nova Scotia.

In addition to the O.C., Lieutenant-Colonel McKinnon, the following other Nova Scotia officers proceeded Overseas with this Brigade: Capt. G. C. Oland, Halifax, Adjutant; Capt. C. V. Trites, Liverpool, Medical Officer, both attached to Brigade Headquarters; Major S. C. Oland, in command of 66th Battery; Lieut. J. Vickery, 58th Battery; Brigade Ammunition Column, Capt. F. S. Burns, Lieut. Herbert Stairs, Lieut. W. M. Ray, Lieut. T. D. Farquahar.

The 4th Divisional Artillery, consisting of the 12th, 13th, 14th and 15th Brigades, and Divisional Ammunition Column, left Canada on September 11, 1916, and completed training in England.

In the fall of 1916 the Imperial authorities for the Imperial Army adopted the formation of six-gun Batteries instead of four-gun Batteries, reducing Brigades in each Division. The Canadian authorities followed in January, 1917, and from the 1st, 2nd and 3rd Divisions in France a new 4th Divisional Artillery was reconstituted, and the old 4th Divisional Artillery became 5th Divisional Artillery, which later became Corps Artillery.

On the formation of the Nova Scotia Regimental Depot, Lieutenant-Colonel McKinnon was given command and was later appointed Deputy Judge Advocate General, Canadian Forces Overseas.