"Vermont, Town Clerk, Vital and Town Records, 1732-2005," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:QPQX-4GK6 : 3 March 2021), Alfred Guy Mudgett and Eunice Jane Knapp, 15 Nov 1941; citing Marriage, Northfield, Washington, Vermont, United States, various town clerks and records divisions, Vermont; FHL microfilm 005487675.
"Vermont Vital Records, 1760-1954", database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:VNRC-9QX : 19 February 2021), Donald George Cruickshank and Eunice Jane Knapp, 1946.
"United States Social Security Death Index," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:JTD1-SZ2 : 11 January 2021), Eunice K Linley, 18 Jan 2006; citing U.S. Social Security Administration, Death Master File, database (Alexandria, Virginia: National Technical Information Service, ongoing).