I'd have to concur with LTG Whitehead. McClellan's intelligence from Pinkerton's and the Union Intelligence Service was systematically flawed, and overestimated Confederate strength by 50-75,000, compounded by McClellan and his staff's overinflation of that inflated number.
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<font color="limegreen"></font id="limegreen">
<center><font size="3"><b>Captain Patrick Q. Mullen</b></font id="size3">
<font size="2"><font color="maroon">Officer Commanding:</font id="maroon">
<font color="limegreen"><b>Mullen's Fenian Cavalry </b>(4th Bde)</font id="limegreen">
<font color="yellow">1st Division/II Corps
Army of Mississippi
Western Theater
CSA</font id="yellow">
<font color="red">ACWGC</font id="red"></font id="size2"></center>