"United States Social Security Death Index," database, FamilySearch (
https://familysearch.org/ark:/61903/1:1:JPQ9-VZP : accessed 4 March 2016), Donald Servaes, 25 Dec 1991; citing U.S. Social Security Administration, Death Master File, database (Alexandria, Virginia: National Technical Information Service, ongoing).; "Massachusetts Death Index, 1970-2003," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:VZ51-H5D : accessed 4 March 2016), Donald Servaes, 25 Dec 1991; from "Massachusetts Death Index, 1970-2003," database, Ancestry (http://www.ancestry.com : 2005); citing Boston, Massachusetts, death certificate number 008730, Commonwealth of Massachusetts Department of Health Services, Boston.