Internment Locations
Arrested: March 1943
Honouliuli Internment Camp, Oahu Island
Paroled: July 1943
Released from Parole: April 1944
With Keijiro Matsuo's induction into the U.S. Army forthcoming in April 1944, he was ordered released from parole. Two of his brothers, John Takashiro Matsuo and Theodore Seigoro Matsuo, also served in the U.S. military during the war.