72 NortH CaroLina Troops, 1861-65. The Federal army was composed of six Corps: First (Hooker’s), Second (Sumner’s), Fifth (Porter’s), Sixth (Franklin’s), Ninth (Burnside’s), Twelfth (Mansfield’s), besides Pleasanton’s Cavalry Division. On the Southern side were two Corps: Longstreet’s and Jackson’s, with Stuart’s Cavalry. The morning reports for that day of the Federal army show 101,000 “effective ;” but General McClellan, in his report of the battle, places his number of men in line at 87,000. General Lee, in his re- port simply puts his force at “less than 40,000.” General Longstreet estimates them at 37,000, and General D. H. Hill at 31,000. The best estimate of numbers actually in line would be 87,000 Federals and 25,000 Confederates. Of the latter, only 27,000 were in hand when the battle opened. The arrival of the divisions of MecLaws and A. P. Hill from Harper’s Ferry during the battle, raised Lee’s total to 35,000. Over a fourth of these were from North Carolina, which had thirty-two regiments and three batteries there. The battle was fought in a bend of the Potomac river, the town of Sharpsburg, Md., being the center of the Southern line of battle, whose right flank rested on the Antietam creek, just above where it flows into the Potomac, and the left flank on the Potomac higher up. General Lee had braved all rules of strategy by dividing his army im the presence of an enemy treble his numbers. He had sent Jackson, with nearly half the army, to the south side of the Potomac to in- vest Harper’s Ferry, while with the other part of the army he himself advanced on Hagerstown. General McClellan, who slowly and with caution was. following Lee’s movements, found at Frederick, Md., a dispatch from Lee to General D. H. Hill, which had been dropped in the latter’s encampment. This disclosed to him Lee’s entire plan of campaign and the division of his army. With more than his ustial promptness, . McClellan threw himself (on 14 September), upon Turner’s (Boonsboro) and Crampton’s Gaps. These were stubbornly held. till next day, when Lee fell back to Sharpsburg. For- ‘ tunately for Lee, Harper’s Ferry surrendered with 12,000 prisoners early on the morning of the 15th, releasing the be- sieging force. Of these, Walker’s Division, with Jackson SHARPSBURG (OR ANTIETAM). 73 himself, rejoined Lee north of the Potomac, at Sharpsburg, on the afternoon of the 16th. McLaws and A. P. Hill joined him there during the battle on the 17th—McLaws at 9 a. m., and A. P. Hill at 3 p. m.—and each just in time to prevent BN WN Lwi //lamsport SHARPSBURG AND VICINITY. the destruction of the army. With 87,000 men in line, as against Lee’s 35,000, General McClellan should have cap- tured the Confederate army, for fighting with the river at its back any disaster could not have been retrieved. Besides, till 9 a. M., Lee had only 27,000 men, and this number was not finally raised to 35,000 till the arrival of A. P. Hill after 3 p.m. ‘There were no breastworks and neither time nor op- portunity to make any. General McClellan was an excellent General, but his over-eaution saved Lee’s army. He greatly overestimated the numbers opposed to him. He telegraphed to President Lincoln during the battle that Lee had 95,000 men. Had he known that in truth Lee had only 27,000 men when the battle opened, the history of the war and General McClellan’s fortunes would have been essentially different.