go to www.familysearch.org
- next screen scroll down and click on United States, next screen scroll down and on the left hand side click on Massachusetts - this will bring you to free databases for Mass. Deaths are online from 1841 to 1915. There is a browseable database for the years 1916-1920. You could go to Mass Archives and look on their microfilm to find vol and page number.
Edited: Archives also has the BMD index to the year 1970. You could find the other deaths that way and then go right down the street to Mass Vitals and see the actual record. Mass Archives is free, Vitals charges $9 an hour for research.