After the Yoke and Zebra Day operations, it was deternined that
there was no need to fill in the craters on these two Zero Islands.
These decisions greatly simplified the Post-Sandstone requirements.
$Iiththe conclusion of the Zebra Day operations. the work of the
J-3 Section was concluded except for minor details. Lt. CO1. ‘~;ool~ough
had returned to Fort Shafter on Yoke plus one day and Lt. Col. Reaves
returned on Zebra plus one. They were relievedfrom the J-3 Section
but continued with JfF-7 to assistin closingup details. Captain
Duerfeldt was relieved about Zebra plus five snd returned to Washington.
General Barker returned to Fort 5hafter at the time of transfer
of’Headquarters, JTF-7 to that place and remained there for about ten
days.
The X-Ray, Yoke and Zebra operations all followed the same
general patterns. They are briefed below:
X - 3Days - Meeting of all commanders and principle staff
officers to determine if all preparations we-
sufficiently advanced
“to permit proceeding according to schedule. Wmn
receiving CJ’rF-7
decision to proceed, orders were issued to execute the Evacuation Plan.
x-
2 Days - Movements within and into the ~toll were restricted
to last minute essentials; search of all islacds except Zniwetok and
Parry to tisure that all had been evacuated.
x- 1 Day - Evacuation Day - A personnel muster to insure
accurate check of all personnel; last minute preparations of all
scientific equipment; complete evacuation of Eniwetok toll
27
Section III
except