...or the expedition under Wilson, which was to sweep down from the north, through Alabama, simultaneously with Canby's attack on Mobile. The corps finally moved again, and arrived at Fort Gaines, on Dauphin Island , on the 7th of March, where a siege train was organized, *consisting of seven batteries of the First Indiana Artillery, two of the Sixth Michigan, and one of Mack's Eighteenth New York. The cavalry...