Born in Claremont, New Hampshire 3 Jun 1771. Married Susannah Howe in 1800. They had five children (see Susannah's biography).
Sources
Ezra Stearns, History of Littleton, New Hampshire: Vol. III Genealogies (Cambridge, MA: University Press., 1905), p. 5.
Daniel Wait Howe, Howe Genealogies, Vol. 2, Abraham of Roxbury, NEHGS; Boston; 1929; p295-296
1830 US CENSUS, Census Place: Littleton, Grafton, New Hampshire; Series: M19; Roll: 75; Page: 271; Family History Library Film: 0337928.
Find a Grave, database and images (https://www.findagrave.com : accessed 9 October 2020), memorial page for Dr Calvin Ainsworth (3 Jun 1771–12 Jul 1839), Find A Grave: Memorial #38639080, citing Wheeler Hill Cemetery, Littleton, Grafton County, New Hampshire, USA ; Maintained by Victor E. Everhart, PhD (contributor 47774451) .
Acknowledgements
This person was created through the import of Jen Tree 5 01(3) - 23042011.ged on 19 May 2011.
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Armstrong-7449 and Ainsworth-115 appear to represent the same person because: Surname was incorrectly logged as Armstrong, this needs to be merged into the existing Ainsworth profile. Attached sources agree.