All the protagonists in the CW made decisions based on the information they had in hand and much depended on how each analyzed the intelligence they gathered. McClellan, of course, had his multiplication table handy and almost all had their Jomini in hand as they planned battle strategy and tactics. They also had rumors and conflicting reports to sort and discard. All, both N&S, were also sitting on the learning curve and many early mistakes were made as generals experienced the uncertainty and unpredictable realities of war.
A case in point is the circumstances that led to Shiloh. Grant was flush from easy victories at Donelson and Henry. His natural confidence ballooned and he began to believe that the Southern armies in the western theater were on the ropes. Thru this colored lens, Grant read the reports coming in during March as indicative of
CSA disintegration. Looking at his own green troops and the problems of training and administration, he gave enormous weight to the reports flooding his tent of mass desertion and a growing malaise in the
CSA army. Unfortunately, he also overlooked other indicators that should have clanged alarm bells loud and clear.
What exactly did Grant know those first few days in April? He actually knew little and had not yet developed a coordinated and effective espionage network of knowledgeable scouts or informers. By April 3, Grant was telling Halleck: "Deserters occationally come in but all that can be learned from them that is reliable is that the force is large and increasing." Grant finished with an optimistic "many would desert if they could." You would think the operative words should have been
"large and increasing" but to the optimistic Grant
"desertion" was the key ingredient.
One piece of information that has been debated for years is the report of scout Horace Bell that was confirmed by John Parker and W.C.Sanders. According to Bell, he reported that he had found the entire Confederate army on the road to Pittsburg Landing. Lew Wallace, who had put Bell in the field, took the report. Many years after the war, Wallace claimed that he had sent the information to Grant. But there is no record of the dispatch and Grant did acknowledge receipt. Forty years later Bell confirmed that Wallace received "full, reliable and correct information." Instead of the information being forwarded to Grant quickly, the dispatch went through ordinary channels if it went at all. Wallace later excused his neglect by claiming that he didn't want to appear overbearing to his superior, "What right had I to suppose General Grant was not on the watch with more facilities at his command than belonged to me?"
Shiloh, of course, was a wake-up call to Grant. After he squeaked out a win, Grant encouraged the multi-talented and intuitive Grenville Dodge to develop the beginnings of a modern espionage network that would serve Grant well thru his Vicksburg campaign and Chattanooga victory.
(Message edited by tulip on January 15, 2003)