On the night of April 25, in anticipation of the attack, General McNeil ordered the evacuation of women and children via steamboat to a safe location upriver. Also during the night two gunboats and a steamer arrived with additional troops to support McNeil's forces. With the gunboats in place McNeil did not foresee any threat from the Mississippi River side of the city, so he had cannons moved from Forts A and D along the river to Forts B and C on the western side of the city. In all, McNeil's forces totaled about 4,000 men, including supporting regiments from Iowa, Wisconsin, Nebraska, and Illinois, though some of these regiments may have arrived after the action had ended.