"Massachusetts Death Index, 1970-2003," database, FamilySearch (
https://familysearch.org/ark:/61903/1:1:VZRG-W5X : 4 December 2014), Salvatore Falzone in entry for Catherin M Falzone, 27 Nov 2002; from "Massachusetts Death Index, 1970-2003," database, Ancestry (http://www.ancestry.com : 2005); citing Boston, Massachusetts, death certificate number , Commonwealth of Massachusetts Department of Health Services, Boston.