"United States Census, 1900," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:M94X-SQZ : accessed 2 January 2018), Louisa Loudin in household of Whitaker Loudin, Magisterial Districts of New Castle & Sulphur New Castle town, Henry, Kentucky, United States; citing enumeration district (ED) 38, sheet 23B, family 461, NARA microfilm publication T623 (Washington, D.C.: National Archives and Records Administration, 1972.); FHL microfilm 1,240,526.