Also, there is a wonderful record found at Ancestry documenting Levi and Tamson's marriage ban on July 20, 1787. It states "Levi Shackford of Newbury informed of his intention of marriage with Tamson Greenleaf of Newbury & I posted up their intent. July 20, 1787"
Yr & Day of a Marriage Persons Married & where belonged By whom Married
August 30 Levi Shackford of Newburyport and Tamson Greenleaf of Newberry Do [Rev Jona Tucker]
"Massachusetts, Town Clerk, Vital and Town Records, 1627-2001," digital images, FamilySearch (http://familysearch.org : accessed 16 July 2014), Levi Shackford of Newburyport and Tamson Greenleaf of Newberry; Essex>County wide>County court births, marriages, deaths 1654-1795, page 70, Image 539 of 610.
Massachusetts, Massachusetts, Town and Vital Records, 1620-1988, , Levi Shackford of Newbury informed of his intention of marriage with Tamson Greenleaf of Newbury July 20, 1787, 20 July 1787; digital images, Ancestry.com (http://www.ancestry.com : accessed 29 May 2013); Town and City Clerks of Massachusetts. Massachusetts Vital and Town Records..