"United States Census, 1920," index and images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MDCR-S4B : accessed 16 May 2015), Jacob E Holbrook, Gaff, Idaho, Idaho, United States; citing sheet 5B, family 79, NARA microfilm publication T625 (Washington D.C.: National Archives and Records Administration, n.d.); FHL microfilm 1,820,292.
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