7. and because the military garrison was also quartered there, this island was made the "military island". A site plan was developed to provide housing, messing, 4ffice space, warehousing, shops, recreation facilities, and utilities for 600 men, the number of Army and Air Force personnel believed to he required to support the series of experiments contemplated when planning started on March 5, 1949, Similarly, it was planned at that time to provide for 600 civilians on Parry Island: 200 scientists and their assistants, and 400 men in the construction and operating force. The type of building construction had not yet been fully developed, but it had been determined that an aluminum alloy would be used for all semi-permanent buildings; that personnel would be housed in groups, 8 or 16 men to a building for officers and scientists, and approximately 34 men to a dormitory for construction personnel and enlisted men; that water would be distilled and power generated on each island; that an open air movie and outside recreational facilities would be provided on each island; and that each group would be a complete unit with necessary administration buildings, mess hall, bakery, cold storage, PX and Post Office, maintenance shops, laundry, and infirmary, These fundamental ideas were incorporated in the original site plans. The first site pians were developed from the few maps of the islands that had been previously prepared from aerial photographs, and from personal observations made by the members of the reconnaissance team, This was done because the work of planning and developing the engineering design was started as soon as the Reconnaissance Report was accepted, At about the same time, February 1, 1949, the first group of H & N personnel (nine men) left Los Angeles for Eniwetok, The Chief of Surveys and one surveyor were included in this group. Because of the limited facilities available, the necessity for emphasis on workmen to initiate construction, and the inability of the garrison to support more than 30 men, it was May 17, 1949, before there was one complete survey party at the Atoll. In spite of such limitations, topographical survey work was started at once on Parry Island and then on Eniwetok. As data were accumulated, field sketches were prepared and sent to the Home Office, site plans were modified to fit the topography, and utility plans were developed, Later, similar information was obtained for the three principal Experiment Islands -- Engebi, the Aomon group and Runit -- and tent camp sites were developed for those islands, Because of the remoteness of the Project from the nearest practical source of supply of construction materials and because of the two or three month period required for supplies to reach Jobsite from vendor, the Engineering Division was required to make early estimates of probable equipment and material needs, Fortunately, the fact that Holmes & Narver was responsible for construction as well as for design and engineering made it possible to expedite procurement by stockpiling on the basis of early sketches bak