Lieut.-Col. W. H. Jackson, Brigade Major of the 8th Brigade Division, was in command of the force which assembled at Prescott, and performed the arduous duties required of him most efficiently. On the departure of Lieut.-Col. F. T. Atcherly to take command of the force at Cornwall, Lieut.-Col. Jackson was instructed to assume command of the forces which were concentrating at Preseott. A large body of Fenians had gathered at Ogdensburg, just across the river, and rumors were rife that they intended making a crossing. He accordingly took prompt precautions to place that important point in a state of defence. The troops at his command were one division of the Ottawa Field Battery, with two guns; the Ottawa Rifle Company (Capt. Mowat), the 43rd Carleton Battalion (Lieut.-Col. Bearman), and the 56th Battalion Lisgar Rifles (Lieut.-Col. Jessup). In addition he had two companies of Railway Guards, making his total force about 750 officers and men. With this command he thoroughly guarded, picketed and patrolled every important point east, west and north, and so keen was his vigilance that the enemy across the river could find no loop-hole for an attack and abandoned their intention. This force was kept on duty until the 3rd of June, when the danger having passed, they were relieved from further service. The situation at Brockville was as grave as at other points along the frontier, owing to its close contiguity to the American shore. It was the headquarters of the 42nd Battalion, which was speedily mustered under command of Lieut.-Col. J. D. Buell. Several of the companies of this corps were located many miles from headquarters, but on receiving the call for active service they moved with remarkable activity, and arrived at the frontier within 24 hours after the summons had been sent forth. No. 4 Company (Capt. Allan Fraser), from Fitzroy, had about 80 miles to travel, partly by waggon and partly by rail. They quickly mustered at Kinburn and moved with such celerity that they reported at Brockville early the next morning. Such, indeed, was the spirit that prevailed among the volunteers everywhere, and to their promptness is due the defeat of the enemy's plans. The Forty-second did very great service in protecting the railway docks and other points of landing at Brockville, besides patrolling the river banks as far east as Maitland, thus keeping up a chain of communication with the garrison at Prescott. Several "scares" occurred during the time they were on service, which caused sleepless nights, but by their vigilance the Fenians were deterred from making an attack. All were prompt, willing and eager to obey every command, and were warmly commended for the soldierly manner in which they performed their duty.