Harry learned afterward how terribly effective had been the blow. The whole Northern campaign had been upset by the meteoric appearance of Jackson and the speed with which he marched and fought. McDowell’s army of 40,000 men and a hundred guns had been scattered, and it would take him much time to get it all together again. McClellan, advancing on Richmond, was without the support on his right which McDowell was to furnish and was compelled to hesitate.
But Jackson’s foot cavalry were soon to find that they were not to rest on their brilliant exploits. As eager as ever, their general was making them ready for another great advance further into the North.