"United States Census, 1930," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:XH1X-GD4 : accessed 18 July 2021), Aiko Komatsubura in household of Seryabura Komatsubura, Ewa, Honolulu, Hawaii, United States; citing enumeration district (ED) ED 99, sheet 2A, line 9, family 23, NARA microfilm publication T626 (Washington D.C.: National Archives and Records Administration, 2002), roll 2632; FHL microfilm 2,342,366.
"United States Census, 1940," database with images, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:VB9J-4DH : 5 January 2021), Aiko Komatsubara in household of Mistugi Komatsubara, Representative District 5, Honolulu, Hawaii Territory, United States; citing enumeration district (ED) 2-105, sheet 4A, line 22, family 65, Sixteenth Census of the United States, 1940, NARA digital publication T627. Records of the Bureau of the Census, 1790 - 2007, RG 29. Washington, D.C.: National Archives and Records Administration, 2012, roll 4586.
"United States Social Security Death Index," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:VSWZ-2MQ : 12 January 2021), Aiko Kawachi, 20 Nov 2008; citing U.S. Social Security Administration, Death Master File, database (Alexandria, Virginia: National Technical Information Service, ongoing).