↑ "United States Census, 1910," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:M2LF-QCV : accessed 17 June 2020), Gladys Hennessey in household of Frank Hennessey, Mankato Ward 2, Blue Earth, Minnesota, United States; citing enumeration district (ED) ED 17, sheet 10B, family 132, NARA microfilm publication T624 (Washington D.C.: National Archives and Records Administration, 1982), roll 691; FHL microfilm 1,374,704.
↑ "United States Census, 1920," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:M4M4-WC4 : accessed 17 June 2020), Gladys Hennessey in household of Frank Hennessey, Mankato Ward 1, Blue Earth, Minnesota, United States; citing ED 16, sheet 7A, line 33, family 142, NARA microfilm publication T625 (Washington D.C.: National Archives and Records Administration, 1992), roll 825; FHL microfilm 1,820,825.
↑ "United States Census, 1930," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:X3C5-7XF : accessed 17 June 2020), Gladys Hennesy in household of Frank Hennesy, Mankato, Blue Earth, Minnesota, United States; citing enumeration district (ED) ED 20, sheet 9A, line 3, family 196, NARA microfilm publication T626 (Washington D.C.: National Archives and Records Administration, 2002), roll 1080; FHL microfilm 2,340,815.
↑ "United States Census, 1940," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:KSVN-DSG : 28 February 2020), Gladys Hennessey in household of Frank J Hennessey, Ward 1, Mankato, Mankato City, Blue Earth, Minnesota, United States; citing enumeration district (ED) 7-21B, sheet 7A, line 6, family 130, Sixteenth Census of the United States, 1940, NARA digital publication T627. Records of the Bureau of the Census, 1790 - 2007, RG 29. Washington, D.C.: National Archives and Records Administration, 2012, roll 1908.