Iverson's gravest error
as not in staying behind his troops during their attack, but in failing to reconnoiter their line of advance before the attack began. His regiments apparently proceeded in perfect parade ground order, with no skirmishers in their front. Had any skirmishers been sent out, they surely would have encountered Baxter's line just beyond the crest of Oak Ridge on Iverson's left. If Iverson's men did not see Baxter's line, Baxter's men surely saw Iverson's line approaching.
General Robinson arrived on northern Seminary Ridge just as Iverson was beginning his advance, and became concerned about the gap between Baxter's left and Cutler's line. For this reason, he directed Baxter "to change front forward on his left battalion, and to close this interval, toward which the enemy was making his way."Baxter complied by shifting his left two regiments, the 11th.Pennsylvania and 97th New York, to their left so as to connect with Cutler's line. They formed behind a rock fence that ran near the crest of the ridge to the west, but it was the ridge crest, not the fence, that offered real shelter to the new line. Isaac Hall of the 97th New York later wrote that he had to step forward up slope "and stretch my neck" in order to get a view of Iverson's advance."
The regiment's line at this time was some 16 yards east of the site of its monument. Since the leftward shift of the 11.th Pennsylvania and 97th New York left a gap between the right of the 97th and the 12th Massachusetts line at the Mummasburg Road, Baxter pulled the 83rd New York and 88th Pennsylvania from his right in order to fill the void. These units were available to face Iverson because O'Neal was not at the moment posing a threat from the north.