National Archives, 1983. An index to naturalization records of the U.S. District Court and the U.S. Circuit Court for Massachusetts. A letter M beside the petition number indicates that it is a military naturalization. Secretary of the Commonwealth. These documents are also at the Massachusetts State Archives.
Most years have full name indexes.
List name, age, occupation, residence, date of naturalization, and witnesses. Secretary of the Commonwealth. Card index is also available at the Massachusetts State Archives. National Archives, 1988. D.C. Most volumes are individually indexed.