"Gettysburg, July 1" by David G. Martin, 2nd Ed. Combined Books, London/Pennsyvania, 1995.
"A Vast Sea of Misery" by Gregory A Coco, Thomas Publications, Pennsyvania, 1988.
Oral interview with Gettysburg National Park certified Field Guide, Gettysburg Pennsyvania, 1999.
Gettysburg "Offical Guide" and monuments and plaques throughout the National Park, Gettysburg Pennsyvania, 1999.