the Operation, Task Group 7.5 was organized along Military lines, Staff positions were filled bypersonnel of the AEC, whereas the line organization followed closely the normal organizational pattern of the Contractor and was completely manned by Holmes & Narver employees. The principal contributor was the Eniwetok Field Office which had been delegated responsibility by the Man- ager, SFO, for normal direct and contract activities at the Pacific Proving Grounds. This Field Office accomplished its functions of engineering, design, construction, operation and maintenance through a Contractor, Holmes & Narver, Inc. During the interim period, personnel who constituted the TG staff during the Operation performed, in addition to their normal AEC duties, functions of planning and preparation with coordination being - exercised by the Commander, in his capacity of Director of SFOsOffice of Test Operations, The Field Manager, Eniwetok Field Office, was Deputy Commander, TG 7.5, for the Operation. At the time when the AEC transferred its authority to the Task Force Commander, TG 7.5 became operational, the normal duties of its personnel were assimilated into their functions in the TG 7.5 organization, and execution of the previously developed operation plan and the assigned mission became the objectives of the entire Task Group. Upon completion of the operational period, these per- sonnel reverted to their normal functions and concluding operational activities of the Task Group were handled through AK channels. During the construction period, the Holmes & Narver organization at the Jobsite reached a maximum of 2,318; during the operational -3Copied/DOE LANL, J-Div.