"Philippines, Manila, Civil Registration, 1899-1984," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:QKJG-GR5R : 9 April 2020), Carlos Felix Quirino, 14 Jan 1910; Birth, 14 Jan 1910, City of Manila Civil Registrar, Philippines; FHL microfilm 1,494,804.
"California, Los Angeles Passenger Lists, 1907-1948," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:KZQF-KCB : 13 March 2018), Carlos F Quirino, 1927; citing Immigration, ship name President Jackson, NARA microfilm publication M1764 (Washington, D.C.: National Archives and Records Administration, n.d.), roll 14; FHL microfilm 2,229,916.
"United States Census, 1930," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:X9Q9-12B : accessed 7 May 2020), Carlos Quirino in household of Dolores Quirino, Madison, Dane, Wisconsin, United States; citing enumeration district (ED) ED 46, sheet 16B, line 53, family 421, NARA microfilm publication T626 (Washington D.C.: National Archives and Records Administration, 2002), roll 2567; FHL microfilm 2,342,301.