Statistics for occurrence #1 of “Gen. McCall” in chapter 26 of Elias Nason, McClellan's Own Story: the war for the union, the soldiers who fought it, the civilians who directed it, and his relations to them.:

...his artillery. After this the enemy, in large force, comprising the divisions of Longstreet and A. P. Hill, attacked Gen. McCall, whose division, after severe fighting, was compelled to retire. Gen. McCall , in his report of the battle, says: About half-past 2 my pickets were driven in by a strong advance, after some skirmishing, without loss on our part. At three o'clock the enemy sent forward...
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