Sekiguchi Camp #201
From RG 59, Box 132
Dated 20 Dec 1944, Report to MacArthur
Camp #201- Sekiguchi
Contains 55 civilians, all women - unknown origin for now
Location: 34.42' 10" N, 135.12' 50" E (see MAP)
Location: per Wes Injerd
The camp was indeed in Sekiguchi , right next to the main road (perhaps where the Sekiguchi-dai Park is now). In the distance in the upper right corner is the huge Imperial Palace grounds, which is right in front of Tokyo Station.
See Injerd's chart on Tokyo CIC movement for chronology and further information on this camp.