aa " 113 CHRON OLOGY 1952 April CASTLE first conceived September IVY operational phase commenced at EniwetokBikini Atolls October Office of Deputy Commander for Overseas Tests established at AFSWC 22 October Brigadier General Howell M. Estes, Jr., (then Colonel) appointed Commander, Task Group 132.4 for CASTLE 28 October 5 November Manpower Conference at Hickam AFB, T. H. November General Estes visited Forward Area to witness IVY's MIKE Shot and to receive preliminary indoctrination 1 November MIKE Shot detonated at Elugelab Island in Eniwetok Atoll 16 November KING Shot detonated November December Roll-up and redeployment of men and materiel at the conclusion of IVY 1953 6 January Task Group 132.4 activated for CASTLE, effective 1 January 1953 13 February Task Group 132.4 redesignated Task Group 7.4 March ~ June Operation UPSHOT/KNOTHOLE, Nevada Proving Ground 9 March March CASTLE funding policies outlined in McNeil Memorandum Eniwetok Island surveyed by USAF Installation Office personnel for CASTLE needs 4 AFWU/ Hi gi I a [26