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.