Previous to the issuance of his order to Lieut.-Col. Booker, Col. Peacocke had telegraphed to Lieut.-Col. Dennis that he had ordered the International Ferry steamer to proceed from Fort Erie to Port Colborne, and instructed him to put a gun detachment on board and patrol the Niagara River from Fort Erie to Chippawa. As this steamer had not arrived at 10.30 p.m., Lieut.-Col. Dennis availed himself of the patriotic offer of Capt. Lachlan McCallum, owner of the powerful tug "W. T. Robb," to place that boat at his disposal. Capt. McCallum was the commanding officer of the Dunnville Naval Brigade, and the boat was lying at her dock at that place when he received a telegram from Lieut.-Col. Dennis shortly after midnight to proceed to Port Colborne without delay. He quickly mustered his crew and the members of his Naval Brigade and left Dunnville at 2 o'clock a.m., arriving at Port Colborne at about 4 a.m. Meanwhile the Welland Canal Field Battery, under command of Capt. Richard S. King, of Port Robinson, had reported at Port Colborne, and received orders to embark on the "W. T. Robb," for the proposed reconnaissance to the Niagara River. For some unaccountable reason the field guns of this splendid Battery, which was one of the most efficient in the Province at that time, had been removed to Hamilton a few months previously, and their only armament on this occasion was short Enfield rifles with sword bayonets. They mustered three officers and 59 men when they joined the Dunnville Naval Brigade on board the tug. The latter corps consisted of three officers and 43 men, armed with Enfield rifles and equipment, but were without uniforms. Thus the total strength of the combatant forces which left Port Colborne on the "W. T. Robb" was 108 of all ranks. Without waiting for a reply from Col. Peacocke relative to the change in plans suggested by the conference, Lieut.-Col. Dennis, accompanied by Capt. Akers, went on board the tug, and assuming command of the expedition, ordered the vessel to proceed at once to Fort Erie.