Yep. Visited the battlefield 20 years ago and wept when I looked from the Union position at what the Confederates were ordered to do. No army in the world could walk (not charge) a mile in open field against cannon, then, at 50 yards, massed musketry from an entrenched enemy. It was suicide.
My experience was the same as both of yours when I visited there as an adult about 20 years ago. I'll never forget it, especially looking across that open field. Talk about the perfect place to be cut to pieces.
I'm not psychic or anything, but I clearly felt the presence of souls in that place among the hedgerows, fences, and rocks. It was an intense feeling of many souls feeling sadness and resentment.