Frederick, July 12, 1863.The following general order of General R. E. Lee to the rebel army, issued from Hagerstown, on Saturday, was found when General Kilpatrick entered the town on Sunday morning: General orders, no. 16.
headquarters army of Northern Virginia, July 11, 1863.After the long and trying marches, endured with the fortitude that has ever characterized  the soldiers of the army of Northern Virginia, you have penetrated to the country of our enemies, and recalled to the defence of their own soil those who were engaged in the invasion of ours. You have fought a fierce and sanguinary battle, which, if not attended with the success that has hitherto crowned your efforts, was marked by the same heroic spirit that has commanded the respect of your enemies, the gratitude of your country, and the admiration of mankind. Once more you are called upon to meet the enemy from whom you have torn so many fields, the names of which will never die. Once more the eyes of your countrymen are turned upon you, and again do wives and sisters, fathers and mothers, and helpless children, lean for defence on your strong arms and brave hearts. Let every soldier remember that on his courage and fidelity depends all that makes life worth having, the freedom of his country, the honor of his people, and the security of his home. Let each heart grow strong in the remembrance of our glorious past, and in the thought of the inestimable blessings for which we contend; and, invoking the assistance of that benign Power which has signally blessed our former efforts, let us go forth in confidence to secure the peace and safety of. our country. Soldiers, your old enemy is before you. Win from him honor worthy of your right cause, worthy of your comrades dead on so many illustrious fields.
R. E. Lee. General Commanding.