Report of Investigation Division by Mr. Roy T. Yoshida (SCAP, Legal Section), dated February 6th, 1947; on Hiroshi Ukki not being localisable at the address given during the reference report.
Report of Investigation Division by H. Kanemitsu (SCAP), dated November 12th, 1946; on Hosaka's location and the activities he led in the Osaka Office during WW2.