"United States Census, 1910," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MGQR-PTY : accessed 4 March 2017), Helen Hanigan, Chester Ward 5, Delaware, Pennsylvania, United States; citing enumeration district (ED) ED 107, sheet 2B, family 37, NARA microfilm publication T624 (Washington D.C.: National Archives and Records Administration, 1982), roll 1338; FHL microfilm 1,375,351.