"United States Census, 1910," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:M2F5-G3V : accessed 16 September 2020), Alberta Barnes in household of Samuel Barnes, Ballenger, Frederick, Maryland, United States; citing enumeration district (ED) ED 81, sheet 4B, family 87, NARA microfilm publication T624 (Washington D.C.: National Archives and Records Administration, 1982), roll 565; FHL microfilm 1,374,578.
"United States Census, 1920," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:M6QG-PST : accessed 15 September 2020), Alberta E Cline in household of George Cline, Ballenger, Frederick, Maryland, United States; citing ED 91, sheet 3B, line 81, family 46, NARA microfilm publication T625 (Washington D.C.: National Archives and Records Administration, 1992), roll 673; FHL microfilm 1,820,673.