↑ 2.02.12.2United States. 1880 U.S. Census Population Schedule. (National Archives Microfilm Publication T9) Year: 1880; Census Place: Cambridge, Middlesex, Massachusetts; Roll: T9_543; Family History Film: 1254543; Page: 377.1000; Enumeration District: 433; Image: 0397.
Name: Harrison Simpson Birth Date: abt 1838 Birth Place: Maine Residence Date: 1880 Residence Place: Cambridge, Middlesex, Massachusetts, United States
↑ 4.04.14.2Ancestry.com. 1870 United States Federal Census. (Online publication - Provo, UT, USA: Ancestry.com Operations, Inc., 2009. Images reproduced by FamilySearch.Original data - 1870 U.S. census, population schedules. NARA microfilm publication M593, 1,761 rolls. Washington, D.C.: National Archives and Record) Year: 1870; Census Place: , , ; Roll: M593.
Name: Harrison Simpson Birth Date: abt 1838 Birth Place: Maine Residence Date: 1870 Residence Place: Cambridge Ward 4, Middlesex, Massachusetts