82D BRIGADE, INFANTRY--Brig. Gen. Edward Vollrath; 163rd and 164th Regiments; 148th Machine Gun Battalion. 66TH BRIGADE, FIELD ARTILLERY--(Commanding officer not announced); 146th, 147th, and 148th Regiments; 116th Trench Mortar Battery. ENGINEER TROOPS--116th Regiment. SIGNAL TROOPS--116th Battalion. DIVISION UNITS--41st Division Headquarters Troop; 146th Machine Gun Battalion. 42D DIVISION (_Rainbow_)--Major Gen. C. T. Menoher, commanding; (Chief of Staff not announced); Major Walter E. Powers, Adjutant General. 83D BRIGADE, INFANTRY--Brig. Gen. M. Lenihan; 165th and 166th Regiments; 150th Machine Gun Battalion. 84TH BRIGADE, INFANTRY--Brig. Gen. R. A. Brown; 167th and 168th Regiments; 151st Machine Gun Battalion. 67TH BRIGADE, FIELD ARTILLERY--Brig. Gen. G. C. Gatley; 149th, 150th and 151st Regiments; 117th Trench Mortar Battery. ENGINEER TROOPS--117th Regiment. SIGNAL TROOPS--117th Field Signal Battalion. DIVISION UNITS--42d Division Headquarters Troop; 149th Machine Gun Battalion. =2ND ARMY CORPS= Major Gen. Robert Lee Bullard, Commanding. 4th Division, Regular Army; 28th, (Pennsylvania,) 30th, (Tennessee, North and South Carolina, and District of Columbia), and 36th (Missouri and Kansas) Divisions, National Guard; 77th (New York) and 82d (Georgia, Alabama, and Florida) Divisions, National Army. 4TH DIVISION--Major Gen. George H. Cameron, commanding; Lieut. Col. Christian A. Bach, Chief of Staff; Major Jesse D. Elliott, Adjutant General. 7TH BRIGADE, INFANTRY--Brig. Gen. B. A. Poore; 39th and 47th Regiments; 11th Machine Gun Battalion. 8TH BRIGADE, INFANTRY--Brig. Gen. E. E. Booth; 58th and 59th Regiments; 12th Machine Gun Battalion. 4TH BRIGADE, FIELD ARTILLERY--Brig. Gen. E. B. Babbitt; 13th, 16th and 77th Regiments; 4th Trench Mortar Battery. ENGINEER TROOPS--4th Regiment. SIGNAL TROOPS---8th Battalion. DIVISION UNITS--4th Division Headquarters Troop; 10th Machine Gun Battalion. 28TH DIVISION--Major Gen. C. H. Muir, commanding; (Chief of Staff not announced); Lieut. Col. David J. Davis, Adjutant General. 55TH BRIGADE, INFANTRY--Brig. Gen. T. W. Darrah; 109th and 110th Regiments; 108th Machine Gun Battalion. 56TH BRIGADE, INFANTRY--Major Gen. William Weigel; 111th and 112th Regiments; 109th Machine Gun Battalion. 53RD BRIGADE, FIELD ARTILLERY--Brig. Gen. W. G. Price, 107th, 108th, and 109th Regiments; 103rd Trench Mortar Battery. ENGINEER TROOPS--103d Regiment. SIGNAL TROOPS--103d Battalion. DIVISION UNITS--28th Division Headquarters Troop; 107th Machine Gun Battalion. 30TH DIVISION (_Wild Cat_)--Major Gen. Edward M. Lewis, commanding; Lieut. Col. Robert B. McBride, Chief of Staff; Lieut. Col. Francis B. Hinkle, Adjutant General. 59TH BRIGADE, INFANTRY--Brig. Gen. Lawrence D. Tyson; 117th and 118th Regiments; 114th Machine Gun Battalion. 60TH BRIGADE, INFANTRY--Brig. Gen. Samuel L. Faison; 119th and 120th Regiments; 115th Machine Gun Battalion.