The 2nd Division of the V corps, under Brig. Gen. Romeyn B. Ayres, was known as the "Regular Division" because two of its three brigades were composed entirely of U.S. Army (regular army) troops, not state volunteers.
2. division af 5. korps under brigadegeneral Romeyn B. Ayres var kendt som Regular Division, fordi to af dens tre brigader bestod af stående tropper fra hæren, ikke frivillige fra staterne.