C77 Bikini Atoll was incorporated to provide more real estate. Earlier programs, as subsequently modified, for building technical and community facilities were completed or moved far toward completion at Los Alamos and Sandia. Additional facilities were built at Kansas City, Burlington, Salton Sea, Inyokern, and Picatinny Arsenal, The Simms Girl's School building and site in Albuquerque were taken over from Sandia Laboratory and slightly enlarged for the use of SFOO headquarters. Organization The SFOOfield and contractor organizations grew extensively. The number of key, operating contractors approximately doubled with addition of: Procter & Gamble, under Army Ordnance contract, to operate Pantex; Dow Chemical Company, to operate Rocky Flats; Thompson Products Company, to operate Spoon River; Reynolds Electric & Engineering Company, to perform various support services at Nevada Proving Grounds; and the following as part of thermonuclear development: National Bureau of Standards, to operate a research and production facility at Cryogenics Engineering Laboratory; Cambridge Corporation, to develop, assemble and test dewar equipment; and American Car & Foundry, to do production engineering and production at new Albuquerque facilities. The Rock Island project was deactivated, cancelling this contract with Army Ordnance, SFOOField Offices were established at Burlington (to replace a representative office), Los Alamos, Rocky Flats, Pantex, Eniwetok, Las Vegas, and Spoon River. The field office at Los Angeles was replaced by a Branch security office and the representative office at Rock Island was deactivated. Security representatives were stationed in New York City. The headquarters of SFOO remained in Los Alamos until the Summer of 1951 and during the period was reorganized into an operations-wide staff with assignment of the Los Alamos responsibilities to a new field office. -The headquarters was transferred to Albuquerque as of June 18, 1951, following survey of various cities located near the center of Santa Fe Operations, with transfer being completed by mid-autumn. The Of- fice of Test Operations was established and a patent attorney added to the staff. The reorganization and physical separation of SFOO headquarters office from Los Alamos resulted in improved SFO-wide planning, greater coordination and integration, more concentrated responsibility for-local Los Alamos problems, and more effective staff utilization. SFOO-AEC employees increased from mid-1950's 1, 368 to only 1,624, of whom 352 were in the Albuquerque headquartersoffice, 144 were assigned to “other places", and 1, 128 were in field offices. Contract personnel (including operations, research and development, maintenance and service, Los Alamos Constructors, and Ordnance contract employees at Pantex and Burlington but excluding design and engineering) grew to 29, 871. Organizational Plan for Mission Operations The 1947 objective of relieving LASL of all operations not directly associated with research, development and testing of the active weapons system was largely accomplished. LASL retained facilities which could be used for stockpile production of nuclear and high explosive components, but was using them only for developmental and prototype production. Detonators were still being shipped from Picatinny to LASL, but agreement had been reached for concluding this practice. SOE/ALR ae y