↑ Adams, William Frederick, and Cutter, William Richard. Genealogical and personal memoirs relating to the families of the state of Massachusetts, Vol. II. Lewis Historical Publishing Co: New York, 1910.
↑ "Massachusetts Deaths and Burials, 1795-1910," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:FC9V-MW1 : 10 December 2014), Electa Jackson, 23 Apr 1857; citing Northampton, Hampshire, Massachusetts, reference p 19; FHL microfilm 186,162.
"Massachusetts State Census, 1855," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MQW5-7D7 : 2 April 2016), Electa Jackson in household of Benj Jackson, Northampton, Hampshire, Massachusetts, United States; State Archives, Boston; FHL microfilm 953,947.