Massachusetts General Laws Part I. Administration of the Government (Ch. 1-182) Ch. 51, § 14

The city or town clerk or other officer having charge of the registration of deaths in each city or town shall, on the first day of every month, and also two days before every election, transmit to the registrars of voters a list of the names of all residents thereof eighteen years of age or older who died in the preceding month or since the date of the list previously transmitted, with a statement of the ward, street and number therein, if any, where such person resided at his death.