"Canada Census, 1891," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:MW23-YGQ : 3 August 2016), Retha E Dalton, Blockhouse, Lunenburg, Nova Scotia, Canada; Public Archives, Ottawa, Ontario; Library and Archives Canada film number 30953_148120.
"Canada Census, 1901," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:KH2M-JXP : 23 February 2021), Retha A Dolton in household of Sarah Dolton, Lunenburg, Nova Scotia, Canada; citing p. 1, Library and Archives of Canada, Ottawa.
"United States Census, 1910," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MKKL-GR8 : accessed 6 June 2021), Ruta Ethel Dalton in household of Mayarit T Pennel, Bridgeport, Fairfield, Connecticut, United States; citing enumeration district (ED) ED 28, sheet 10A, family 175, NARA microfilm publication T624 (Washington D.C.: National Archives and Records Administration, 1982), roll 128; FHL microfilm 1,374,141.
"Illinois Deaths and Stillbirths, 1916-1947," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:NQ4S-49L : 8 March 2018), Retha Balton in entry for Retha Ethel Hochbaum, 21 May 1923; Public Board of Health, Archives, Springfield; FHL microfilm 1,557,036.
"Illinois, Cook County Deaths, 1871-1998," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:Q2MC-NRGK : 17 March 2018), Retha Dalton in entry for Retha Ethel Hochbaum, 21 May 1923; citing Chicago, Cook, Illinois, United States, source reference , record number , Cook County Courthouse, Chicago; FHL microfilm .
"United States Census, 1930," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:XH7Y-SGT : accessed 6 June 2021), Retha E Hochbaun in household of F Eugene Hochbaun, Philadelphia (Districts 0251-0500), Philadelphia, Pennsylvania, United States; citing enumeration district (ED) ED 400, sheet 7A, line 37, family 218, NARA microfilm publication T626 (Washington D.C.: National Archives and Records Administration, 2002), roll 2109; FHL microfilm 2,341,843.
"United States Census, 1940," database with images, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:KQ4Q-G2R : 7 January 2021), Retha E-D Hochbaern in household of Hannah Jones, Philadelphia, Philadelphia, Pennsylvania, United States; citing enumeration district (ED) 51-819, sheet 12B, line 75, family 310, 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 3712.