<P> On the morning of April 6, around 8: 00 or 8: 30 a.m., Grant's flagship stopped alongside Wallace's boat moored at Crump's Landing and gave orders for the 3rd Division to be held ready to move in any direction . Wallace concentrated his troops at Stoney Lonesome, although his westernmost brigade remained at Adamsville . He then waited for further orders, which arrived between 11 and 11: 30 a.m. Grant ordered Wallace to move his unit up to join the Union right, a move that would have been in support of Sherman's 5th Division, which was encamped around Shiloh Church when the battle began . The written orders, transcribed from verbal orders that Grant gave to an aide, were lost during the battle and controversy remains over their wording . Wallace maintained that he was not ordered to Pittsburg Landing, which was to the left rear of the army, or told which road to use . Grant later claimed that he ordered Wallace to Pittsburg Landing by way of the River Road (also called the Hamburg--Savannah Road). </P> <P> Around noon, Wallace began the journey along the Shunpike, a route familiar to his men . A member of Grant's staff, William R. Rowley, found Wallace between 2 and 2: 30 p.m. on the Shunpike, after Grant wondered where Wallace was and why he had not arrived on the battlefield, while the main Union force was being slowly pressed backward . Rowley told Wallace that the Union army had retreated, Sherman was no longer fighting at Shiloh Church, and the battle line had moved northeast toward Pittsburg Landing . If Wallace continued in the same direction, he would have found himself in the rear of the advancing Confederate troops . </P> <P> Wallace had to make a choice: he could launch an attack and fight through the Confederate rear to reach Grant's forces closer to Pittsburg Landing, or reverse his direction and march toward Pittsburg Landing via a crossroads to the River Road . Wallace chose the second option . (After the war, Wallace claimed that his division might have attacked and defeated the Confederates if his advance had not been interrupted, but later conceded that the move would not have been successful .) Rather than realign his troops so the rear guard would be in the front, Wallace made a controversial decision to countermarch his troops to maintain the original order, only facing in the other direction . The move further delayed Wallace's troops as they marched north along the Shunpike road, then took a crossover to reach the River Road to the east, and headed south toward the battlefield . </P> <P> Wallace's division began arriving at Grant's position about 6: 30 p.m., after a march of about 14 miles (23 km) in seven hours over poor and muddy roads . It formed line on the battlefield about 7 p.m., when the fighting was nearly over for the day . Although Grant showed no disapproval at the time, his later endorsement of Wallace's battle report was negative enough to severely damage Wallace's military career . Today, Wallace is better remembered as the author of Ben - Hur . </P>

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