by 5:30 p.m., when the first of kershaw's regiments neared the rose farmhouse, stony hill had been reinforced by two brigades of the 1st division, v corps, under brig. gen. james barnes, those of cols. william s. tilton and jacob b. sweitzer. kershaw's men placed great pressure on the 17th maine, but it continued to hold. for some reason, however, barnes withdrew his understrength division about to the north—without consultation with birney's men—to a new position near the wheatfield road. trobriand and the 17th maine had to follow suit, and the confederates seized stony hill and streamed into the wheatfield. (barnes's controversial decision was widely criticized after the battle, and it effectively ended his military career.)