Kusutaro (山本) Yamamoto migrated from Japan to Washington.
くすたろう was born in 1885. He passed away in 1966.
Sources
"Washington, County Marriages, 1855-2008," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:QKNB-8TSM : 5 November 2017), Kusutaro Yamamoto and Kiku Nyemura, 08 Nov 1915, King, Washington, United States, Washington State Archives, Olympia; FamilySearch digital folder 004268385.
"United States Census, 1930," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:XC3D-6X8 : accessed 25 March 2021), Kusutaro Yamamoto in household of Keiichi Takemura, Seattle, King, Washington, United States; citing enumeration district (ED) ED 166, sheet 4B, line 67, family 32, NARA microfilm publication T626 (Washington D.C.: National Archives and Records Administration, 2002), roll 2500; FHL microfilm 2,342,234.
"United States World War II Draft Registration Cards, 1942," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:QVJT-FW67 : 10 March 2021), Kusutaro Yamamoto, 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.).
"United States Japanese Americans Relocated During World War II, 1942-1946," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:KX2J-D59 : 12 December 2014), Kusutaro F Yamamoto, 1942-1946; citing Tule Lake, person number 19494F, file 410162, NARA NAID 1263921, National Archives at College Park, Maryland.
"United States, War Relocation Authority centers, final accountability rosters, 1942-1946," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:QLXR-CLM6 : 8 February 2019), Kusutaro Frank Yamamoto, 19 Jul 1942; citing roster, family no. 19494, line 26989, NARA microfilm publication M1865 (Washington D.C.: National Archives and Records Administration, 2001).
"United States, War Relocation Authority centers, final accountability rosters, 1942-1946," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:QLX5-P84P : 8 February 2019), Kusutaro Frank Yamamoto, 18 Sep 1943; citing roster, family no. 19494, line 10451, NARA microfilm publication M1865 (Washington D.C.: National Archives and Records Administration, 2001).
"United States Social Security Death Index," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:JB49-4MV : 11 January 2021), Frank K Yamamoto, 15 Aug 1966; citing U.S. Social Security Administration, Death Master File, database (Alexandria, Virginia: National Technical Information Service, ongoing).
"United States, GenealogyBank Historical Newspaper Obituaries, 1815-2011", database, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:Q5MD-1TM2 : 18 July 2020), John A Wicklund and Frank S and George Ray and Raymond Allen and Frank K Yamamoto and Booth-Ashmore Mor Tuary, 1966.