Loses are discussed in that book are :
Western casualties -- US 36, 688 CSA -- 84,187
Eastern casualties -- US --166, 954 CSA , 106,573
Total war -- US-- 153, 642 CSA 190,760
Another source gives these figures
"In conclusion, I see the causality numbers meaning this. Grant incurred most of his casualties when he went up against Lee. Another words, Lee, though fighting defensively, inflicted a majority of Grant’s incurred causality numbers. Lee, already bruised and battered, under supplied and undermanned, especially by the time Grant arrived, would hold off Grant’s much bigger army for almost a year before Lee was forced to surrender. Ironically, Lee would still win most of the Civil War's closing major battles: The Wilderness, Spotsylvania Court House and Cold Harbor, but still lose the war. The material might and numbers of the Union Army could not be overcome. The label “butcher” seems to stick more to Grant, therefore, than Lee in the final analysis. Grant had superior material and manpower, but for lack of superior tactics and strategy he threw his army against Lee’s impervious defensive lines."
Still another source states:
A review of the database maintained by the Civil War Sites Advisory Committee, the government’s official repository of Civil War statistics, indicates that, of the 11 battles listed for the Overland Campaign, the Union won three, the Confederates won two and the rest were inconclusive. In most of the battles, the Confederates were outnumbered by a ratio of 2 to 1. For example, the CWSAC reports that, at Cold Harbor, the North had 108,000 soldiers while the South had only 62,000. Yet the South won the battle. The difference was General Robert E. Lee who commanded the Confederates.
The CWSAC reports that at Cold Harbor, the North suffered 13, 000 casualties while the South had only 2,500. Some reports indicate that Grant lost 6,000 men in a one-hour period. Lacking appropriate military skills, Grant callously pushed more and more soldiers into his front lines, ignoring the number of casualties in order to wear down the Confederates. For ruthlessly sacrificing the lives of these young men, Grant was given the designation "Grant the Butcher."
What Bonekemper fails to point out is Grant with larger numbers good attack Lee's line which were usually stretched to the max with LESS loses. Doing this would make it easier to break Lee's lines. Isn't it amazing how lee check all of Grants flanking movements with his few men? Isn't it amazing how long he held out being outnumbered in men and supplies. Sorta reminds me of the Ccreaming Eagles at Bastogne!!!