Boston Navy Yard
"Wachusett"—one of seven screw sloops-of-war authorized by the U.S. Congress in February 1861—was laid down by the Boston Navy Yard, Boston, Massachusetts, in June 1861; launched on 10 October; sponsored by Miss Mary C. Frothingham; and commissioned at the Boston Navy Yard on 3 March 1862, Comdr. John S. Missroon in command.