"United States Census, 1900," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:M32H-6XX : accessed 14 December 2018), John Rogers in household of John G Rogers, Election District 2 Ellicott, Precinct 2 Ellicott city, Howard, Maryland, United States; citing enumeration district (ED) 81, sheet 9A, family 175, NARA microfilm publication T623 (Washington, D.C.: National Archives and Records Administration, 1972.); FHL microfilm 1,240,624.
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