↑ "Massachusetts Births, 1841-1915," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:FXFM-3QW : 20 February 2021), Bagg, 16 Jan 1899, West Springfield, Hampden, Massachusetts, Hampden, Massachusetts; citing reference ID #6 P. 201, Massachusetts Archives, Boston; FHL microfilm 1,843,711.
U.S., Social Security Applications and Claims Index, 1936-2007 [database on-line]. Provo, UT, USA: Ancestry.com Operations, Inc., 2015.
Find a Grave, database and images (https://www.findagrave.com : accessed 02 January 2021), memorial page for Donald Brooks Bagg (1899–1996), Find a Grave Memorial no. 62746648, citing Meeting House Hill Cemetery, West Springfield, Hampden County, Massachusetts, USA ; Maintained by Dave Robison (contributor 25684516) .