"United States Census, 1900," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MMKS-BMZ : accessed 10 September 2019), James A G Brown in household of Almond Brown, Arthur & Colburn towns, Chippewa, Wisconsin, United States; citing enumeration district (ED) 35, sheet 14A, family 245, NARA microfilm publication T623 (Washington, D.C.: National Archives and Records Administration, 1972.); FHL microfilm 1,241,780.
Find A Grave, database and images (https://www.findagrave.com : accessed 10 September 2019), memorial page for Garfield J Brown (9 Apr 1881–6 Feb 1947), Find A Grave Memorial no. 100744673, citing Oakland Cemetery, Stanley, Chippewa County, Wisconsin, USA ; Maintained by C. Smith (contributor 48990963) .
It may be possible to confirm family relationships with Garfield by comparing test results with other carriers of his Y-chromosome or his mother's mitochondrial DNA.
However, there are no known yDNA or mtDNA test-takers in his direct paternal or maternal line.
It is likely that these autosomal DNA test-takers will share DNA with Garfield: