"United States Census, 1900," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:M33P-B82 : accessed 11 October 2015), Robert C. Oldt in household of Milton A. Oldt, Hanover township, Upper District, Lehigh, Pennsylvania, United States; citing sheet 3B, family 56, NARA microfilm publication T623 (Washington, D.C.: National Archives and Records Administration, n.d.); FHL microfilm 1,241,429.
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