A Military Genius is an American Civil War biography by Sarah Ellen Blackwell. In commencing the attempt to portray a very remarkable career (Anna Ella Carrol, 1815-1894 ) I had hoped for the cooperation of the person concerned so far, at least, as the supervision of any statements I might find it necessary to make. But it was decided by her friends that it would not be well for her at present to be troubled with new projects, or even informed of them.