"California, San Francisco County Records, 1824-1997," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:QL45-9VR9 : 22 July 2021), Kaoru Nakamura and Dorothy Matsuda, 10 Jan; citing Marriage, San Francisco, San Francisco, California, United States, San Francisco Public Library, California; FamilySearch digital folder 004268526.
"United States Census, 1930," database with images, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:XCJQ-F4H : accessed 17 March 2022), Kaone Nakamura, Petaluma, Sonoma, California, United States; citing enumeration district (ED) ED 35, sheet 4B, line 59, family 106, NARA microfilm publication T626 (Washington D.C.: National Archives and Records Administration, 2002), roll 222; FHL microfilm 2,339,957.
"United States Census, 1940," database with images, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:K96C-4JJ : 6 January 2021), K Nakamura, Petaluma Judicial Township, Sonoma, California, United States; citing enumeration district (ED) 49-30, sheet 2A, line 21, family 35, 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 349.
"United States World War II Draft Registration Cards, 1942," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:V4DQ-7DK : 25 November 2020), Kaoru Kay Nakamura, 1942; citing NARA microfilm publication M1936, M1937, M1939, M1951, M1962, M1964, M1986, M2090, and M2097 (Washington D.C.: National Archives and Records Administration, n.d.).
"California, Northern U.S. District Court Naturalization Index, 1852-1989", database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:Q2ST-9244 : 9 March 2021), Kaoru Kay Or Kaworu Kay Nakamura, 1945.
"California Death Index, 1940-1997," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:VPCT-17K : 26 November 2014), Kaoru Nakamura, 18 Mar 1962; Department of Public Health Services, Sacramento.