Saamee 3.9 3-49 PERSONNEL EVACUATION AND MUSTER 3.9.1 Musters On April 8, 1958, the TG 7.1 plan for the conduct of sight- musters in the EPG was published. This plan established a Task Group Muster Officer, and two Atoll Muster Officers for Eniweto™ and Bikini Atolls, respectively. The plan also provided Muster Officers to represent the Headquarters, and each of the various Task Units. Muster rosters were prepared by J-1, TG 7.1 at varying times, depending upon thenumber of changes occasioned by arrive:: and departures from the EPG. During HARDTACK a new system was initiated for complling these muster rosters. An IBM card. was punched for each individual in TG 7.1 participating in the operation. When an individual arrived at the EPG, his card was placed in the active file; cards of departed personnel were held in a:: inactive file. The active file, which included anticipated arrivals, was used by the IBM 704 Computing Section to prepare the rosters on IBM équipment, This new method of preparing rosters saved many man hours of work previously required to type dittos and assembly rosters. The first muster was conducted on April 11 and 12, 1958, as a Teak rehearsal, and the last one on August 18, 1958, for Fig. Musters were normally conducted on D-l or D-Day in order to minimize the false starts. Where the shot was being detonated and the time of H-Hour determined the commencement time of the muster and the details of operation. Therefore, the following is a discussion of only the mist commonly used procedures. f TOPIED/DOE ¥ : LANL RO’ wees 4 PAGE Asieg>