436th Bombardment Squadron (436th BS)
U.S. Army Air Force (USAAF), 5th Air Force (5th AF), 7th Bombardment Group (7th BG)

Background
On April 22, 1942 the 88th Reconnaissance Squadron (88th RS) was redesignated 436th Bombardment Squadron (436th BS) in the 7th Bombardment Group (7th BG) in the U.S. Army Air Force (USAAF).

Postwar
On January 6, 1946 inactivated. On October 1, 1946 reactivated and redesignated 436th Bombardment Squadron (Very Heavy). On September 18, 1947 became part of the U.S. Air Force (USAF). On July 20, 1948 redesignated 436th Bombardment Squadron (Heavy).

References
7 December 1941 The Air Force Story Chapter IV 7 December 1941: A Day That Will Live in Infamy pages 72-73, 74 (photos), 75, 76
7 December 1941 The Air Force Story Appendix D - B-17s Arriving During the Attack pages 157-158
Combat Squadrons of the Air Force World War II (1982) pages 538-540 (436th Bombardment) [PDF pages 550-552]