302nd bombardment Group (H) 1 Jun 1942 - 10 Apr 1944
331st Bombardment Group (VH) 7 Jul 1944 - 15 Apr 1946
1st Lt. Ronald V. Kramer, 21 Jun 1942
Capt. Earl D. Carlson, 4 Jul 1942
Capt. Walter Cross, 23 Jul 1942
Capt. Benjamin M. Sheldon, 23 Sep 1942
Capt. Horace S. Carswell, 23 Jan 1943
Capt. Frank L. Smith, 20 May 1943
Capt. Zane L. Abbott, 23 Aug 1943
unknown, 5 Mar - 10 Apr 1943
Maj. Thomas E. Whitson, by Aug 1944
Maj. Joesph S. Grimm, by Oct 1944
Capt. Louis C. Carr, by Jun 1945
Maj. Andrew F. Gordon, 18 Jul 1945 - unkn.
356th Bombardment Squadron (Heavy) Activated
Constituted 356th Bombardment Squadron (Heavy) on 28 Jan 1942. Activated on 1 June 1942, assigned to the 302nd Bombardment Group, as a B-24 Liberator - Operational Training Unit (OTU).
The squadron was constituted in early 1942 as the 335th Bombardment Squadron before activating at Barksdale Field, Louisiana in June as one of the four original squadrons of the 95th Bombardment Group. The squadron began training in August at Geiger Field, Washington, where it was equipped with Boeing B-17 Flying Fortresses. The unit trained for combat operations until moving overseas starting in March.