...nion side at First Manassas (Bull Run), it is easy to show that it was a physical impossibility for him to have been present at that battle on either side. General L. A. Armistead was the son of General Walker K. Armistead , of the old army, was himself a West-Pointer, entered the Mexican war as First Lieutenant, was breveted Captain for gallant and meritorious conduct at Contreras, and Churubusco, and Major for his c...