ever, it was necessary to revise these estimates continuously throughout the operational period because of changes in the schedule and postponements of shots. As shown in Fig. 3.3, there were 1351 TG 7.1 personnel in the EPG on April 24, 1958. This figure dropped to 1300 shortly after the Yucez event (tne first snot ef fle series) and had declined to 890 a few days after the Umbrella event. By the time the last event was fired there were only 350 TG 7.1 personnefteft in the EPG. Most of the remaining personnel left during the last two weeks in August. The J-1 Travel Section on Parry Island handled the necessary arrangements for each individual's departure. This Section took reservations, maintained the priority list for each MATS flight, made MATS reservations, notified Holmes and Narver in Honolulu about desired hotel reservations in Hawaii and commercial reservations for those personnel traveling to the mainland via commercial carrier, and accepted the clearance sheets from depart- ing personnel. Arrangements were made with JTF 7 for Task Group 7.1 to have an allocation of a specific number of seats on each scheduled MATS plane. Reservations from the EPG to Honolulu generally were available when desired. The JTF 7 Air Transportation Section provided excellent assistance in obtain- ing the required airlift to move personnel from the EPG to Honolulu. Most Task Group personnel were airlifted by MATS to Hickam AFB. Military personnel and most government civilian employees proceeded on to Travis AFB by MATS, whereas most of the AEC and civilian contractor personnel traveled via commercial carrier from Honolulu. A few Task Group personne! returned to the United States by MSTS, commercial ship, or naval vessel. Property Roil-Up. Property roll-up for Hardtack can be broken down into three phases as follows: Bikini roll-up, Eniwetok roll-up, and Johnston Island roll-up. Bikini Roll-up -- Final roll-up took place after the detonation of Juniper on July 22. Prior to that date, however, a number of projects with no further participation, principally DOD, closed down their activities at Bikini and transferred their equipment to Parry for return to the ZI or use at Eniwetok or Johnston. On July 23, roll-up began in earnest and was completed by September 4, 1958. In many instances final packing of trailers and crated cargo was accomplished at Bikini; however, a certain amount of equipment was returned to Eniwetok for processing and documentation for ZI shipment. The J-4 Sec- tion arranged with H&N for the usual carpentry and rigger service, and provided rubberized hair, kimpak, silica gel, etc., from J-4 stock for packing equipment for movement by water and air to Eniwetok. Eniwetok Roll-up -- Partial roll-up was a continuing process that began early in June and continued at a varying pace up until final roll-up. On July 18, completion of TU-1 shots brought on a surge of roll-up activity and again another surge was brought about by the roll-up of activities at Bikini. Beginning with a shipment on the Haiti Victory, which sailed on June 12, 1958, J~4 shipped trailers and general cargo on all vessels returning to the ZI or Honolulu. Various weapon components, such as spare parts, HE, and gas bottles were returned on sample return flyaways to the appropriate Laboratory. The Brostrom was the final roll-up ship, which departed on September 3, 1958 with 2296 M/T of cargo for TG 7.1. 112