No event more severely damaged Irish enthusiasm for the Northern war effort than the Battle of Fredericksburg. Northern Irish reacted with horror and outrage to the staggering casualties sustained by the Irish Brigade during its failed assault on Marye's Heights. Of the 1,200 men who made the attack, 545 were killed, wounded, or missing. 1 For many Irish, these grim figures confirmed old suspicion that Northern leaders would waste Irish lives wantonly. It is therefore surprising that the historical record all but ignores the battle's influence on Irish morale. Instead, the literature on Fredericksburg almost uniformly emphasizes the Irish Brigade's gallantry before the stone wall on December 13, 1862, and the tragic irony of its clash with Irish Confederates. How did the Irish Brigade come to occupy such a lofty, and often romantic, place in the history of the battle? And why does the brigade's doomed charge still overshadow the consequences of its destruction on the Heights--namely, Irish disillusionment on the home front? Much of the answer depends upon the postwar writings of brigade veterans David Power Conyngham, Father William Corby, and St. Clair A. Mulholland. Refusing to let history dismiss as meaningless the Irish blood spilled at Fredericksburg, these men forged a body of literature remarkable for its propensity to mythologize Irish participation in the Civil War, North and South.