^1950 Census of Population(PDF). 1: Number of Inhabitants. Bureau of the Census. Section 6, Pages 21–10 and 21-11, Massachusetts Table 6. Population of Counties by Minor Civil Divisions: 1930 to 1950. 1952 [2011-07-12]. (原始内容存档(PDF)于2011-07-21).
^1920 Census of Population(PDF). Bureau of the Census. Number of Inhabitants, by Counties and Minor Civil Divisions. Pages 21–5 through 21-7. Massachusetts Table 2. Population of Counties by Minor Civil Divisions: 1900, 1910, and 1920. [2011-07-12]. (原始内容存档于2010-08-10).
^1890 Census of the Population(PDF). Department of the Interior, Census Office. Pages 179 through 182. Massachusetts Table 5. Population of States and Territories by Minor Civil Divisions: 1880 and 1890. [2011-07-12]. (原始内容存档于2010-08-10).
^1870 Census of the Population(PDF). Department of the Interior, Census Office. Pages 217 through 220. Table IX. Population of Minor Civil Divisions, &c. Massachusetts. 1872 [2011-07-12]. (原始内容存档(PDF)于2011-06-09).
^1860 Census(PDF). Department of the Interior, Census Office. Pages 220 through 226. State of Massachusetts Table No. 3. Populations of Cities, Towns, &c. 1864 [2011-07-12]. (原始内容存档(PDF)于2011-06-09).
^C.B. Tillinghast. The free public libraries of Massachusetts. 1st Report of the Free Public Library Commission of Massachusetts. Boston: Wright & Potter, 1891. Google books (页面存档备份,存于互联网档案馆)
^July 1, 2008 through June 30, 2009; cf. The FY2009 Municipal Pie: What’s Your Share? Commonwealth of Massachusetts, Board of Library Commissioners. Boston: 2010. Available: Municipal Pie Reports (页面存档备份,存于互联网档案馆). Retrieved 2011-11-11
^ 18.018.1Who Was Who in America, Historical Volume, 1607–1896. Marquis Who's Who. 1967.
^Dr. Pincus, Developer of Birth-Control Pill, Dies. The New York Times. August 23, 1967 [2007-07-21]. (原始内容存档于2008-05-17). Dr. Gregory Goodwin Pincus, one of the three "fathers" of the birth-control pill, died here tonight at Peter Bent Brigham Hospital of myeloid metaplasia, a rare blood disease. He was 64 years old and lived in Northboro.