"United States Census, 1920," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:SP8J-SXJ : accessed 16 November 2020), Hose Alapai in household of David H Alapai, North Kona, Hawaii, Hawaii, United States; citing ED 103, sheet 6A, line , family 49, NARA microfilm publication T625 (Washington D.C.: National Archives and Records Administration, 1992), roll 2033; FHL microfilm 1,822,033.
"United States Census, 1940," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:VB98-22T : 6 March 2020), David Alapai in household of H David Alapai, Tract H-18, North Kona Judicial District, Representative District 2, Hawaii, Hawaii Territory, United States; citing enumeration district (ED) 1-69, sheet 4B, line 63, family 79, 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 4583.
"United States World War II Army Enlistment Records, 1938-1946," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:K8GT-6JJ : 5 December 2014), David H Alapai, enlisted 12 Nov 1941, ; citing "Electronic Army Serial Number Merged File, ca. 1938-1946," database, The National Archives: Access to Archival Databases (AAD) (http://aad.archives.gov : National Archives and Records Administration, 2002); NARA NAID 1263923, National Archives at College Park, Maryland.
"United States Social Security Death Index," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:V9Y1-JTL : 23 August 2020), David H Alapai, 10 Jul 1989; citing U.S. Social Security Administration, Death Master File, database (Alexandria, Virginia: National Technical Information Service, ongoing).
"Hawaii Obituaries Index, ca. 1980-present," database with images, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:QL73-1K9C : 15 November 2020), David or Sonny Hose Alapai, Jr, 1989; citing Hawaii, United States, The Honolulu Advertiser, The Honolulu Star-Bulletin, The Kauai Garden Island News, The Maui News and The Hawaii Tribune-Herald. Joseph F. Smith Library at Brigham Young University - Hawaii, Laie; FHL microfilm 100,544,958.