"Massachusetts Births and Christenings, 1639-1915", digital image, FamilySearch, John Howland in entry for Calvin Howland, 1762
"Massachusetts, Town Clerk, Vital and Town Records, 1626-2001," digital image, FamilySearch, 21 May 1790, Plymouth, marriage of Calvin Howland; FHL microfilm 7009762; citing Massachusetts Secretary of the Commonwealth, Boston.
1850 U.S. Census, Warren, Lincoln County, Maine, family 415, Calvin Howland; digital image, FamilySearch; citing NARA microfilm publication M432.
Ancestry Family Trees.
Acknowledgments
This person was created through the import of Notopoulos Family Tree.ged on 21 May 2011.
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DNA Connections
It may be possible to confirm family relationships with Calvin by comparing test results with other carriers of his Y-chromosome or his mother's mitochondrial DNA.
Y-chromosome DNA test-takers in his direct paternal line on WikiTree: