"United States Census, 1900," database with images, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:MMLB-MCN : accessed 26 April 2022), Cora A Potter in household of Daniel S Potter, Lincoln town Lincoln village, Penobscot, Maine, United States; citing enumeration district (ED) 114, sheet , family , NARA microfilm publication T623 (Washington, D.C.: National Archives and Records Administration, 1972.); FHL microfilm .
"United States Census, 1910," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MR36-RCG : accessed 26 April 2022), Cora A Potter in household of Darnell S Potter, Lincoln, Penobscot, Maine, United States; citing enumeration district (ED) ED 181, sheet 21A, family 432, NARA microfilm publication T624 (Washington D.C.: National Archives and Records Administration, 1982), roll 544; FHL microfilm 1,374,557.
"United States Census, 1930," database with images, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:XMDW-TM8 : accessed 26 April 2022), Cora Porter in household of Fred S Kelley, Lincoln, Penobscot, Maine, United States; citing enumeration district (ED) ED 67, sheet 19B, line 56, family 373, NARA microfilm publication T626 (Washington D.C.: National Archives and Records Administration, 2002), roll 837; FHL microfilm 2,340,572.
"United States Social Security Death Index," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:J5B7-F2Q : 7 January 2021), Cora Potter, Feb 1974; citing U.S. Social Security Administration, Death Master File, database (Alexandria, Virginia: National Technical Information Service, ongoing).
"Maine, J. Gary Nichols Cemetery Collection, ca. 1780-1999," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:QKXM-W1DF : 16 March 2018), Cora A Potter, ; citing Lincoln, Penobscot, Maine, United States, Cemetery Lincoln Center, Maine State Library, Augusta; FHL microfilm 2,184,696.