Miss Carroll was the means of preserving her native State to the Union. Although a slave-owner, and a member of that class which so largely proved disloyal, Miss Carroll freed her slaves, and devoted herself throughout the war to the cause of liberty. She replied to the secession speech of Senator Breckenridge, made during the July session of Congress 1861, with such lucid and convincing arguments, that the War Department not only circulated a large edition, but the Government requested her to prepare other papers upon unsettled points. In response she wrote a pamphlet entitled "The War Powers of the Government," published in December, 1861. By the especial request of President Lincoln she also prepared a paper entitled "The Relation of Revolted Citizens to the National Government," which was approved by him, and formed the basis of his subsequent action. In September, 1861, she also prepared a paper on the Constitutional power of the President to make arrests, and to suspend the writ of habeas corpus; a subject upon which a great conflict of opinion then existed, even among persons of unquestioned loyalty.
Early in the fall of 1861, Miss Carroll took a trip to St. Louis to inspect the progress of the war in the West. A gun-boat fleet, under the special authorization of the President, was then in preparation for a descent of the Mississippi. An examination of this plan by Miss Carroll showed its weakness, and the inevitable disaster it would bring to the National arms. Her astute military genius led her to the substitution of another plan, upon which she based great hopes of success, and its results show it to have been one of the profoundest strategic movements of the ages. Strategy and generalship are two entirely distinct forms of the art of war. Many a general, good at following out a plan, is entirely incapable of forming a successful one. Napoleon stands in the foremost ranks as a strategist, and is held as the greatest warrior of modern times, yet he led no forces into battle. So entirely was he convinced that strategy was the whole art of war, that he was accustomed to speak of himself as the only general of his army, thus subordinating the mere command and movement of forces to the art of strategy. Judged by this standard, which is acknowledged by all military men, Anna Ella Carroll, of Maryland, holds foremost rank as a military genius. On the 12th of November, 1861, while still in St. Louis, Miss Carroll wrote to Hon. Edward Bates at Washington (the member of the Cabinet who first suggested the expedition down the Mississippi), that from information gained by her she believed this plan would fail, and urged him, instead, to have the expedition
